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Peer-reviewed articles

2022

Chamberlain,P., Bradley,A., Arumugam,B., Hammond,D., McNally,J., Logan N., Jones,D., Ngo,C., Peixoto-de-Matos S., Hunt,C., Young G. Long-term Effect of Dual-focus Contact Lenses on Myopia Progression in Children: A 6-year Multicenter Clinical Trial Optom Vis Sci 2022;99(3):204-212 [ Show Abstract ]

Significance: Treatment of myopic children with a dual-focus soft contact lens (DFCL; MiSight 1 day) produced sustained slowing of myopia progression over a six-year period. Significant slowing was also observed in children switched from control to treatment lenses (3 years in each lens).

Purpose: Evaluate the effectiveness of DFCLs in sustaining slowed progression of juvenile-onset myopia over a 6-year treatment period. Assess myopia progression in children who were switched to DFCL at the end of year 3.

Methods: Part 1 was a 3-year clinical trial comparing DFCLs with control CLs (Proclear 1 day) at four investigational sites. In Part 2, subjects completing Part 1 were invited to continue for 3 additional years during which all children were treated with MiSight 1 day DFCLs (52 and 56 from the initially treated (T6) and control (T3) groups, respectively). 85 subjects (45 (T3) and 40 (T6)) completed Part 2. Cyclopleged spherical equivalent refractive errors (SERE) and axial lengths (AL) were monitored and linear mixed model was used to compare their adjusted change annually.

Results: Average age at Part 2 baseline was 13.2 ± 1.3 and 13.0 ± 1.5 for the T6 & T3 groups respectively. Slowed myopia progression in the T6 group observed during Part 1 was sustained throughout Part 2 (Mean ± SEM: Change from baseline SERE(D) = -0.52 ± 0.076 vs -0.51 ± 0.076; change in AL(mm) = 0.28 ± 0.033 vs 0.23 ± 0.033, both P > .05). Comparing progression rates in Part 2 for the T6 and T3 groups respectively indicate that prior treatment does not influence efficacy (SERE -0.51 ± 0.076 vs -0.34 ± 0.077; AL 0.23 ± 0.03 vs 0.18 ± 0.03, both P > .05). Within-eye comparisons of AL growth revealed a 71% slowing for the T3 group (3-years older than Part 1), and further revealed a small subset of eyes (10%) that did not respond to treatment.

Conclusions: DFCLs continue to slow the progression of myopia in children over a six-year period revealing an accumulation of treatment effect. Eye growth of the initial control cohort with DFCL was slowed by 71% over the subsequent 3-year treatment period.

Leat,S., Saraf,A., Rose,K., Christian,L., Irving,E., Jones,D., McCulloch,D Measuring recognition in young children - testability with the Waterloo Differential Acuity Test (WatDAT) Clinical and Experimental Optometry 2022;Online ahead of print [ Show Abstract ]

Clinical relevance
Visual acuity measurement is important for the detection and monitoring of eye disorders. Developing accurate and sensitive visual acuity tests suitable for young children is therefore desirable.

Background
Recognition or form visual acuity (VA), which is measured with matching in children aged 3 years and up, is more sensitive for detecting visual deficits compared to resolution VA. The Waterloo Differential Acuity Test (WatDAT) is a proposed recognition VA test using the concept of identifying the “odd one out” among distractors. The WatDAT is expected to be cognitively easier than matching tests and therefore may be used in younger children. The purpose of this study is to investigate the testability of the WatDAT paradigm in children aged 12–36 months, and to determine the optimum format and number of distractors.

Methods
Fifty-one typically-developing children aged 12–36 months participated in the study. Data for Patti Pics (PP) and Face targets (FT) were collected for formats with 3, 4 and 5 distractors. The targets were presented binocularly on a computer touch screen at 30 cm. The task was to touch the face among identical non-faces or a house among circles. Following initial training, there were 5 presentations for each distractor format. Testability was defined as correctly identifying at least 4/5 presentations and was also determined for uncrowded PP symbols using matching.

Results
Of participants aged 18–36 months, 87% could perform the WatDAT PP targets with 3 distractors compared to 68% for the FT, while 48% could perform matching with PP. The testability for FT increased to 85% for children ≥22 months. Younger children showed lower testability. For the 3 distractor format, PP targets gave 9% testability in children 12 to <18 months, and FT gave a testability of 16% in children 12 to <22 months.

Conclusion
WatDAT testability is higher than matching VA tests. This indicates that the newly developed WatDAT has potential for measuring recognition VA in children 18 months and older.

Thite,N., Desiato,A., Shinde,L., Wolffsohn,J. S., Naroo,S. A., Santodomingo Rubido,J., Cho,P., Jones,D., Villa-Collar,C., Carrillo,G., Chan,O., Wang,H., Iomdina,E., Tarutta,E., Proskurina,O., Fan,C. S., Zeri,F., Bakkar,M. M., Barodawala,F., Dabral,N., Lafosse,E., Lee,C., Nichols,J. J., Chan, J., Park,K., Nair,V., Van Der Worp,E., Vankudre,G., Maseedupally,V., Bhattarai,Y., Nagzarkar,D., Brauer,P., Gil-Cazorla,R. Differences in Practitioner Experience, Practice Type, and Profession in Attitudes Toward Growing Contact Lens Practice Eye & Contact Lens 2022;48(9):369-376 [ Show Abstract ]

Objective: To investigate eye care practitioners' attitudes and perceptions toward potential interventions that can enhance contact lens (CL) practice across the world, and how this is influenced by their practice setting.

Methods: A self-administered, anonymized survey was constructed in English and then forward and backward translated into six more languages. The survey was distributed online via social media platforms and mailing lists involving reputed international professional bodies.
Results: In total, 2,222 responses from 27 countries with sufficient responses were analyzed (53% females, median age- 37 years). Most of the respondents were optometrists (81.9%) and 47.6% were from stand-alone/independent practices. Median working experience in CL prescribing was 11.0 years (IQR: 18.0, 4-22 years). Over two-third of them declared themselves to be very hopeful (22.9%) or hopeful (45.1%) about the future of their CL practice. Among the potential interventions proposed, continuous update of knowledge and skills and competently managing CL-related complications were rated the most important (median score: 9/10 for each). Practitioners working in national/regional retail chains expressed higher proactivity in recommending CLs (9/10) than those in local chains, hospitals, and universities (for all 8/10, P<0.05). National differences were also identified in eye care practitioner attitudes and perceptions (P<0.05).

Conclusions: The study provided important information to delineate a variety of elements characterizing CL practice across the world. These insights can serve as a basis to design strategies at national and international levels

2021

Spafford,M. M., Jones,D. A., Christian,L. W., Labreche,T., Furtado,N. M., MacIver,S., Irving,E. L. What the Canadian public (mis)understands about eyes and eye care Clinical and Experimental Optometry 2021;Online ahead of print [ Show Abstract ]

Clinical relevance
Inadequate public knowledge about eyes and eye care poses avoidable risks to vision-related quality of life.

Background
This study of eye care knowledge among Canadians extends earlier findings from focus groups.

Methods
Perceptions about eyes and eye care were sought using a 21-item online survey and snowball sampling. Inclusion criteria were living in Canada and being at least 18-years old; eye care professionals and staff were excluded. Response frequencies were converted to percentages, with eye condition items analysed according to ‘expected’ or ‘unexpected’ eye impacts. Proportions selecting these impacts or ‘unsure’ were determined.

Results
There were 424 respondents: 83.0% aged 20-65 years and 69.6% female. Mismatches existed between perceived recommendations and behaviours for booking eye exams: within two years (86.7% vs. 68.4%) and symptom-driven (3.3% vs. 13.0%). First eye exams after age one year were deemed appropriate by 43.6%. Few respondents associated glaucoma with no symptoms (6.0%) or amblyopia with blurred vision (13.5%). A notable proportion incorrectly related tunnel vision with age-related macular degeneration (AMD, 36.8%) and cataract (21.9%). Identifying all ‘expected’ responses was unlikely for glaucoma (1.9%), amblyopia (6.7%), and cataract (12.0%). Most respondents identified no ‘expected’ effects for glaucoma (63.8%) and AMD (46.2%) and some ‘expected’ effects for cataract (59.5%) and amblyopia (72.6%). Selecting ‘unsure’ was 9-10 times more common among respondents choosing no ‘expected’ impacts than those choosing some. Awareness of thyroid-associated eye disease was lowest (32.4%) of seven conditions. Respondents were most likely to consult optometrists for routine eye exams, eye disease, diabetes eye checks and blurred vision but family physicians for red eyes and sore eyes. Respondents typically paid for their eye exams and eyewear but wanted government to pay.

Conclusion
Vision-threatening knowledge gaps and misinformation about eyes and eye care among Canadian respondents highlight the need for accessible, targeted public education.

Thite,N., Desiato,A., Shinde,L., Wolffsohn,J. S., Naroo,S. A., Santodomingo-Rubido,J., Cho,P., Jones,D., Villar-Collar,C., Carillo,G., Chan,O., Wang,H., Iomdina,E., Tattura,E., Proskurina,O., Shing Fan,C., Zeri,F., Bakkar,M. M., Barodawala,F., Dabral,N., Lafosse,E., Lee,C., Nichols,J. J., Chan,J., Park,K., Nair,V., van der Worp,E., Vankudre,G., Maseedupalli,V., Bhattarai,Y., Nagzarkar,D., Brauer,P., Gil-Cazorla,R. Opportunities and threats to contact lens practice: A global survey perspective Contact Lens Anterior Eye 2021;44(6):101496 [ Show Abstract ]

Aim
To understand the views of contact lens (CL) practitioners across the globe regarding what they perceive as opportunities and threats in CL practice.

Methods
A self-administered anonymised questionnaire, constructed in English and translated in six more languages, was distributed through reputed international professional bodies and academic institutions worldwide. The questionnaire included items on demographic characteristics, type of practice, and questions designed to explore practitioners’ perspective on the future of their CL practice over the next five years.

Results
A total of 2408 valid responses were analysed. Multifocal CLs for presbyopia, CLs for myopia control, use of daily disposable (DD) CLs for occasional wear, and biocompatible materials to improve comfort were identified as promising areas of opportunities by practitioners (all 8/10). Respondents from North America, and Europe valued DDCLs for occasional wear moderately more favourable (Median: 9/10 for all) as compared to colleagues in Asia (Median: 8/10, p < 0.001), South America (Median: 8/10, p < 0.01), and Africa (Median: 8/10p < 0.01). Multifocal CLs for presbyopia was perceived as a better opportunity by practitioners in North America and Europe (Median: 9/10 for both), as well as in Australasia (Median: 8/10), in comparison to Asia, Africa, and Middle East (for all Median: 6/10, p < 0.001). Practitioners expressed concerns about the availability of CLs and CL prescriptions online without direct professional involvement (both 9/10).

Conclusions
Overall, the most appealing opportunities for CL practice growth were identified in occasional use of DD CLs, biocompatible materials to reduce CL discomfort, multifocal CLs for presbyopia correction and management of myopia control with CLs. Lack of regulation in CL sales, especially online, seemed to be a constant threat. The insights from this study can be used to design targeted strategies to enhance CL practice across the globe and in specific geographical areas.

Woods,J., Jones,D., Jones,L., Jones,S., Hunt,C., Chamberlain,P., McNally,J Ocular health of children wearing daily disposable contact lenses over a 6-year period Contact Lens Anterior Eye 2021;44(4):101391 [ Show Abstract ]

Purpose
To report on the ocular health and safety of children fit with soft hydrogel daily-disposable contact lenses, and followed for 6-years in a double-masked clinical trial investigating the performance of a dual-focus contact lens designed to control myopia progression.

Methods
Children aged 8−12 years, naïve to contact lens wear, were enrolled across four international sites. During years 1–3, children were randomised to either MiSight® 1 day or Proclear® 1 day (both omafilcon A, CooperVision, Inc.). The lenses were identical in material and geometry except for the front optical zone design. At the end of year-3, all those wearing Proclear 1 day were switched to MiSight 1 day, therefore all wore MiSight 1 day in years 4−6. Subjects agreed to wear the lenses at least 10-hours/day, 6-days/week. After dispensing, study visits were at 1-week, 1-month, 6-months and every 6-months until 6-years. At each visit, ocular measurements and subjective responses were recorded. Biomicroscopy used 0–4 grading scales; grade 0 represented no findings.

Results
144 children were enrolled: 69F:75M; mean age 10.1 years; mean cycloplegic spherical-equivalent refraction -2.11D; ethnicities included 34 East-Asian, 12 West-Asian, and 79 Caucasian. 92 completed the 6-years. Only three subjects discontinued due to an ocular adverse event (AE). No contact lens related AEs were classified as serious. The incidence rate of infiltrative AEs was 0.61% (6.1/1000 wearing-years; 95%CI: 0.24%–1.57%). The most common biomicroscopy findings were limbal, bulbar and tarsal hyperaemia and tarsal roughness. 99% of all biomicroscopy findings were grade-1 or lower. After 6-years of lens wear, ocular health by biomicroscopy was similar to pre-lens wear.

Conclusions
Across the 6-years, there were no contact lens related serious AEs and biomicroscopy showed no significant changes. Results suggest that children this age can successfully wear daily-disposable hydrogel contact lenses with minimal impact on ocular physiology.

2020

Wolffsohn,J. S., Calossi,A., Cho,P., Gifford,K., Jones,L., Jones,D., Guthrie,S., Li,M., Lipener,C., Logan,N. S., Malet,F., Peixoto-de-Matos,S. C., González-Méijome,J. M., Nichols,J. J., Orr,J. B., Santodomingo-Rubido,J., Schaefer,T., Thite,N., van der Worp,E., Tarutta,E., Iomdina,E., Ali,B. M., Villa-Collar,C., Abesamis-Dichoso,C., Chen,C., Pult,H., Blaser,P., Parra Sandra Johanna,G., Iqbal,F., Ramos,R., Carrillo Orihuela,G., Boychev,N. Global trends in myopia management attitudes and strategies in clinical practice – 2019 Update Cont Lens Anterior Eye 2020;43(1):9-17 [ Show Abstract ]

Purpose: A survey in 2015 identified a high level of eye care practitioner concern about myopia with a reported moderately high level of activity, but the vast majority still prescribed single vision interventions to young myopes. This research aimed to update these findings 4 years later. Methods: A self-administrated, internet-based questionnaire was distributed in eight languages, through professional bodies to eye care practitioners globally. The questions examined: awareness of increasing myopia prevalence, perceived efficacy of available strategies and adoption levels of such strategies, and reasons for not adopting specific strategies. Results: Of the 1336 respondents, concern was highest (9.0 ± 1.6; p < 0.001) in Asia and lowest (7.6 ± 2.2; p < 0.001) in Australasia. Practitioners from Asia also considered their clinical practice of myopia control to be the most active (7.7 ± 2.3; p < 0.001), the North American practitioners being the least active (6.3 ± 2.9; p < 0.001). Orthokeratology was perceived to be the most effective method of myopia control, followed by pharmaceutical approaches and approved myopia control soft contact lenses (p < 0.001). Although significant intra-regional differences existed, overall, most practitioners did not consider single-vision distance under-correction to be an effective strategy for attenuating myopia progression (79.6 %), but prescribed single vision spectacles or contact lenses as the primary mode of correction for myopic patients (63.6 ± 21.8 %). The main justifications for their reluctance to prescribe alternatives to single vision refractive corrections were increased cost (20.6 %) and inadequate information (17.6 %). Conclusions: While practitioner concern about myopia and the reported level of activity have increased over the last 4 years, the vast majority of eye care clinicians still prescribe single vision interventions to young myopes. With recent global consensus evidence-based guidelines having been published, it is hoped that this will inform the practice of myopia management in future.

2019

Chamberlain,P., Gonzalez-Meijome,J., Ngo,C., Jones,D., Young,G. A three-year randomised clinical trial of MiSight lenses for myopia control Optometry & Vision Science 2019;96(8):556-567 [ Show Abstract ]

SIGNIFICANCE: Results of this randomized, double-masked clinical trial demonstrate the effectiveness of the MiSight soft contact lens in slowing myopia progression over multiple years.

PURPOSE: The purpose of this study was to quantify the effectiveness of MiSight daily disposable soft contact lens in slowing the progression of juvenile-onset myopia.

METHODS: Myopic children (spherical equivalent refraction, -0.75 to -4.00 D; astigmatism, <1.00 D) aged 8 to 12 years with no prior contact lens experience were enrolled in a 3-year, double-masked, randomized clinical trial at four investigational sites in four countries. Subjects in each group were matched for age, sex, and ethnicity and were randomized to either a MiSight 1-day contact lens (test) or Proclear 1-day (control; omafilcon A) and worn on a daily disposable basis. Primary outcome measures were the change in cycloplegic spherical equivalent refraction and axial length.

RESULTS: Of the subjects enrolled, 75.5% (109/144) completed the clinical trial (53 test, 56 control). Unadjusted change in spherical equivalent refraction was -0.73 D (59%) less in the test group than in the control group (-0.51 ± 0.64 vs. -1.24 ± 0.61 D, P < .001). Mean change in axial length was 0.32 mm (52%) less in the test group than in the control group (0.30 ± 0.27 vs. 0.62 ± 0.30 mm, P < .001). Changes in spherical equivalent refraction and axial length were highly correlated (r = -0.90, P < .001). Over the course of the study, there were no cases of serious ocular adverse events reported. Four asymptomatic corneal infiltrative (one test, three control) events were observed at scheduled study visits.

CONCLUSIONS: Results of this clinical trial demonstrate the effectiveness of the MiSight daily disposable soft contact lens in slowing change in spherical equivalent refraction and axial length.

TRIAL REGISTRATION: ClinicalTrials.gov NCT01729208.

Wolffsohn,J. S., Kollbaum,P. S., Berntsen,D. A., Atchison,D. A., Benavente,A., Bradley,A., Buckhurst,H., Collins,M., Fujikado,T., Hiraoka,T., Hirota,M., Jones,D., Logan,N. S., Lundström,L., Torii,H., Read,S. A., Naidoo,K. IMI - Clinical Myopia Control Trials and Instrumentation Report Invest Ophthalmol Vis Sci 2019;60(3):M132-M160 [ Show Abstract ]

The evidence-basis based on existing myopia control trials along with the supporting academic literature were reviewed; this informed recommendations on the outcomes suggested from clinical trials aimed at slowing myopia progression to show the effectiveness of treatments and the impact on patients. These outcomes were classified as primary (refractive error and/or axial length), secondary (patient reported outcomes and treatment compliance), and exploratory (peripheral refraction, accommodative changes, ocular alignment, pupil size, outdoor activity/lighting levels, anterior and posterior segment imaging, and tissue biomechanics). The currently available instrumentation, which the literature has shown to best achieve the primary and secondary outcomes, was reviewed and critiqued. Issues relating to study design and patient selection were also identified. These findings and consensus from the International Myopia Institute members led to final recommendations to inform future instrumentation development and to guide clinical trial protocols.

2018

Yang,M., Luensmann,D., Fonn,D., Woods,J., Jones,D., Gordon,K., Jones,L. Myopia prevalence in Canadian school children: A pilot study Eye 2018;32(6):1042-1047 [ Show Abstract ]

Purpose: A pilot study to determine the prevalence of myopia, proportion of uncorrected myopia and pertinent environmental factors among children in a suburban region in Canada. Methods: Refraction with cycloplegia and ocular biometry were measured in children of two age groups. Myopia was considered at a spherical equivalent refraction (SER) ≤-0.50 D in at least one eye. Parents completed a questionnaire that captured the child's daily activities. Results: A total of 166 children completed the study (83 aged 6-8 and 83 aged 11-13). Myopia prevalence was 17.5% among the overall group, 6.0% among ages 6-8 and 28.9% among ages 11-13. Mean subjective SER in myopic children was -1.10 D (95% confidence interval (CI), -0.34 to -1.86 D) at ages 6-8 and -2.44 D (95% CI, -1.71 to -3.18 D) at ages 11-13. In this study, 34.5% of the myopic children were uncorrected, which represented 6.0% of the entire group of children. Mean axial length (AL) increased by 1.03 mm from ages 6-8 (mean 22.62 mm; 95% CI, 22.45 to 22.79 mm) to ages 11-13 (mean 23.65 mm; 95% CI, 23.45 to 23.84 mm; p < 0.01). The correlation coefficient between AL and SER was -0.618 (p < 0.01). Binary logistic regression between outdoor time and the prevalence of myopia showed that one additional hour of outdoor time per week lowered the odds of a child having myopia by 14.3% (p = 0.007). Conclusion: Myopia prevalence increased from 6% at ages 6-8 to 29% at ages 11-13. Thirty-five per cent of the myopes in this study were uncorrected. More time outdoors may be beneficial to protect against myopia onset.

2016

Jones,D., Woods,C., Jones,L., Efron,N., Morgan,P. A sixteen year survey of Canadian contact lens prescribing Contact Lens and Anterior Eye 2016;39(6):402-410 [ Show Abstract ]

Purpose To understand long-term contact lens prescribing habits of Canadian optometrists. Methods One thousand optometrists were surveyed annually from 2000 to 2015. Information was requested on the first ten patients examined after receiving the survey. Results Over the 16-year survey period, 1987 optometrists provided information on 19,143 patients. Mean age of the patients was 32.7 ± 14.4 years. Ratio of females to males was 2:1, the ratio of new fits to refits was 2:3. Soft contact lenses represented 94.5% of all fits. Rigid lenses were more often used as a refit compared to a new fit. Over the 16 years, market share for silicone hydrogel materials grew from 0% to 69.6%, mid-water content materials declined from 75.7% to 14.1%. The multifocal market share grew at the expense of spherical designs, with no change in toric lens fitting. Monthly soft lens replacement remained the preferred option at 48.2%, followed by daily disposable at 40.8%; two-weekly replacement declined to less than10% of patients by 2015. Extended wear was likely used to refit and only to a small proportion of wearers, representing 2.6% of SCL by 2015. The lens care system of choice throughout the period was multipurpose solutions, although the proportion for peroxide systems more than doubled by 2015 from 9.6%, to 21.1%. Conclusions Over the 16-year period, SCL material preference changed to silicone hydrogels with monthly replacement being preferred; daily disposables replacing 2-weekly as the alternate. Lens care preference continued to be multipurpose solutions. Rigid lenses appear to be sustained for specialist fitting. © 2016 British Contact Lens Association

2011

Efron,N., Morgan,P. B., Helland,M., Itoi,M., Jones,D., Nichols,J. J., van der Worp,E., Woods,C. A. Soft toric contact lens prescribing in different countries Contact Lens and Anterior Eye 2011;34(1):36-38

Morgan,P. B., Efron,N., Helland,M., Itoi,M., Jones,D., Nichols,J. J., van der Worp,E., Woods,C. A. Global trends in prescribing contact lenses for extended wear Contact Lens and Anterior Eye 2011;34(1):32-35

2010

Efron,N., Morgan,P. B., Helland,M., Itoi,M., Jones,D., Nichols,J. J., van der Worp,E., Woods,C. A. Daily disposable contact lens prescribing around the world Contact Lens and Anterior Eye 2010;33(5):225-227

Efron,N., Morgan,P. B., Helland,M., Itoi,M., Jones,D., Nichols,J. J., van der Worp,E., Woods,C. A. International rigid contact lens prescribing Contact Lens and Anterior Eye 2010;33(3):141-143

Morgan,P. B., Efron,N., Helland,M., Itoi,M., Jones,D., Nichols,J. J., van der Worp,E., Woods,C. A. Twenty first century trends in silicone hydrogel contact lens fitting: An international perspective Contact Lens and Anterior Eye 2010;33(4):196-198

Morgan,P. B., Efron,N., Helland,M., Itoi,M., Jones,D., Nichols,J. J., van der Worp,E., Woods,C. A. Demographics of international contact lens prescribing Contact Lens and Anterior Eye 2010;33(1):27-29

2007

Schulze,M. M., Jones,D. A., Simpson,T. L. The development of validated bulbar redness grading scales Optometry and Vision Science 2007;84(10):976-983 [ Show Abstract ]

PURPOSE: To develop a perceptually and physically based bulbar redness grading scale. METHODS: Digital conjunctival hyperemia photographs were taken using a photo-slit lamp at controlled exposures. Nine participants arranged 25 images on a tabletop over a range of 1.5 m, using separation to represent changes in redness. The position of each image was recorded and normalized for a 0 to 100 scale, and compared to chromaticity of each image obtained using a spectrophotometer. The performance of two versions of the scale (5 and 10 images) and a continuous grading scale was evaluated based on repeatability data collected from nineteen observers who used each scale twice to grade 30 randomly presented images of bulbar redness. RESULTS: Psychophysical scaling was highly correlated between single observers (Pearson's r >or= 0.92, p < 0.05). The averaged subjective grades significantly correlated with chromaticity (r = 0.95 and r = 0.99, p < 0.001 for CIE u* and log u*, respectively). Across all observers, test and retest ratings were highly correlated with either scale (r >or= 0.98), and showed high levels of repeatability expressed by intraclass correlation coefficients (ICC >or= 0.98), correlation coefficients of concordance (CCC >or= 0.96), and coefficients of repeatability (COR <or= 5.64). Despite single unit increment options, the majority of grade values assigned using the discrete scales were distributed in multiples of 5. CONCLUSIONS: Combining psychophysical and physical attributes is a promising method for the development of novel anterior segment scales; the newly developed scales performed well in a clinical setting.

Woods,C. A., Jones,D. A., Jones,L. W., Morgan,P. B. A seven year survey of the contact lens prescribing habits of Canadian optometrists Optometry and Vision Science 2007;84(6):505-510 [ Show Abstract ]

PURPOSE: Little is known about the contact lens prescribing habits of optometrists in North America. The purpose of this survey was to obtain data on the types of lenses and solutions prescribed by Canadian optometrists. METHODS: One thousand Canadian optometrists were surveyed annually over seven consecutive years (2000 to 2006; n = 7000) on their contact lens prescribing preferences. Each survey requested a range of information about the contact lenses prescribed to the first 10 patients after its receipt. RESULTS: Over this time period, 1008 (14.4%) of the surveys were returned, providing data on 9383 fits. During the seven-year period, the ratio of male:female fits was 1:2 (3123:6217, 43 not reported), with a mean age of 31.3 +/- 13.6 years (range 2 to 82 years). The ratio of new fits to refits was 2:3 (3780:5518, 85 not reported), with 91.3% of all fits being soft contact lenses (SCL). Of the SCL fits, 59.5% were spherical, 28.5% toric, 9.7% multifocal, and 2.3% cosmetic tints. Gas permeable (GP) fits were 46.6% spherical, 18.6% toric, 19.5% multifocal, and 6.6% were for orthokeratology (OK). Over the seven-year period, SCL prescribed for continuous wear (CW) increased from 3.2% to 14.3% between 2000 and 2004 and reduced to 8.1% in 2006, for all fits. The use of mid-water content (MWC) materials decreased from 34.6% to 2.7% and the use of silicone hydrogel (SH) lenses increased from 61.4% to 96.2%, for all CW fits. GP lens continuous wear increased from 0.7% to 30.6% of all GP lens fits by 2006. Daily wear (DW) of SH lenses decreased from 49.6% (2000) to 33.7% (2004) and then increased to 86.1% in 2006, for SH fits. MWC SCL fit on a monthly planned replacement (PR) basis reduced in popularity over the seven-year period (75.0% to 39.9%) and in 2006 more patients were fit overall with SH lenses (42.9%). The use of non-PR SCL declined from 20.5% to 4.5% of all fits. Fitting of low-water content lenses also declined (15.1% to 7.0%). High-water content (5.4% to10.2%) and SH lenses (5.4% to 42.9%) both increased. By 2006, the majority of GP lenses fit were with high Dk (HDK) materials (50.3%). CONCLUSIONS: The preferred contact lens modality for Canadian optometrists appears to be DW SCL, which are replaced monthly. The proportion of lenses used for CW peaked in 2004, with SH SCL being the preferred material. The market share for GP lenses remains relatively unchanged, with an increasing proportion used for OK and CW. The launch of DW SH lenses in 2004 resulted in a marked increase in their reported fits, with a similar effect following the launch of a HDK GP lens material for CW.

2003

Hrynchak,P., Hutchings,N., Jones,D., Simpson,T. A comparison of cup-to-disc ratio evaluation in normal subjects using stereo biomicroscopy and digital imaging of the optic nerve head Ophthalmic and Physiological Optics 2003;23(1):51-59 [ Show Abstract ]

The cup-to-disc (CD) ratio evaluated using stereoscopic biomicroscopy was compared with that evaluated by viewing a non-stereo digital image of the optic nerve head. Twenty normal subjects (mean age 26 +/- 4 years) were evaluated by two observers. The average CD ratio was 0.29 with a range of 0-0.80. The intra-class correlations between the observers ranged from 0.82 to 0.96, when comparing horizontal and vertical CD ratios for both evaluation techniques. The mean CD ratio was significantly smaller when viewing the digital image (0.25 +/- 0.01) compared with stereoscopic observation (0.33 +/- 0.03, p < 0.0001). Although the mean differences between the two techniques were small, the percentage of CD ratios that differed by >or=0.2 were between 5 and 25% of evaluations. Caution should be exercised when using stereoscopic and non-stereo digital evaluations of CD ratio interchangeably to assess longitudinal progression in a multi-clinician setting.

2001

Jones,L. W., Jones,D. A. Non-inflammatory corneal complications of contact lens wear Contact Lens and Anterior Eye 2001;24(2):73-79 [ Show Abstract ]

Contact lenses can induce changes in the epithelium, stroma and endothelium of the cornea, all of which can be observed clinically using the slit-lamp biomicroscope. These complications include epithelial microcysts, vacuoles and staining, stromal oedema and vascularization, and endothelial polymegethism and blebs. Each complication can be attributed to one or more aetiological factors such as hypoxia, hypercapnia, tissue acidosis, trauma, hypersensitivity and toxicity. This review outlines the way in which these complications manifest clinically, and consideration is given to management strategies and likely prognoses. Early detection of these conditions and appropriate action can usually prevent more serious ocular complications.

Scientific Presentations

2022

Bitton E, Hurteau G, Laplante A, Jones D, Wittich W. Optometry student debt in Canada American Academy of Optometry, San Diego, October, 2022

Irving EL, Jones DA, Chow A, Christian LW, Furtado NM, Labreche T, MacIver S, Spafford MM. Eye care literacy: How the public wants to learn 10th Canadian Optometry School Research Conference, Montréal, Canada, Dec 3, 2022

Jones D, Leat S, Rose K, Opoku-Yamoah V, Irving E, McCulloch D, Christian L. Attitudes and practices of pediatric eye care: A survey of Canadian optometrists American Academy of Optometry, San Diego, October, 2022

Jones DA, Christian LW, Rose K, Opoku-Yamoah V, Irving EL, McCulloch DL, Leat SJ. Practices and attitudes toward pediatric eye care 10th Canadian Optometry School Research Conference, Montréal, Canada, Dec 3, 2022

Jones DA, Luensman D, Alton K. The prevalence of refractive error in children in a Canadian rural, first nation community 10th Canadian Optometry School Research Conference, Montréal, Canada, Dec 3, 2022

Opoku-Yamoah V, Leat SJ, Kalpana R, Jones DA, Irving EL, McCulloch DL, Christian LW. Is Canadian pediatric optometric vision care changing? 10th Canadian Optometry School Research Conference, Montréal, Canada, Dec 3, 2022

Postnikoff C, Woods J, Weiss S, Jones D, Kasthurirangan S, Chamberlain P, McNally J. Preliminary modification and adaptation of quality of vision questionnaire for children American Academy of Optometry, San Diego, October, 2022

Postnikoff C, Woods J, Weiss S, Jones D, Kasthurirangan S, Chamberlain P, McNally J. Preliminary modification and adaptation of a visual ability questionnaire for children International Myopia Conference, Rotterdam, Netherlands, September, 2022

2021

Chamberlain,P., Arumugam,B., Jones,D., Logan N., Peixoto-de-Matos S., Young G.. Myopia progression in children on cessation of dual-focus contact lens wear: MiSight 1 day 7-year findings American Academy of Optometry, Boston, 2021

Jones DA, Luensmann D, Alton K, Werner L. The prevalence of refractive error in children in a Canadian rural, First Nation Community
American Academy of Optometry, Boston, 2021 [ PDF ]

2019

Rappon J, Woods J, Jones D, Jones L. Tolerability of novel myopia control spectacle designs Invest Ophthalmol Vis Sci 2019;E-abstract 5845

Rappon JM, Chalberg TW, Neitz M, Woods J, Jones D, Jones L Neitz J. Clinical Development of a Novel Myopia Treatment for Myopia Management The 17th International Myopia Conference, Tokyo, Japan, 2019

2018

Chamberlain P, Jones D, Logan N, Peixoto-de-Matos S, Ngp C, Young G. Comparison of myopia progression in new and established myopia control treatment (MiSight) groups BCLA Asia. Singapore, 2018

2017

Chamberlain P, Back A, Lazon de la Jara P, Jones D. Adaptation of children to daily disposable soft contact lenses British Contact Lens Association Conference, 2017

Chamberlain P, Back A, Lazon de la Jara P, Logan N, Jones D. 3 year effectiveness of a dual-focus 1 day soft contact lens for myopia control British Contact Lens Association Conference, 2017

2016

Back A, Chamberlain P, Logan N, Jones D, Gonzalez-Meijome J, Mei Saw S, Young G. Clinical evaluation of a dual-focus myopia control 1 day soft contact lens - 2-year results Optom Vis Sci 2016;93: E-abstract 160035

Yang M, Luensmann D, Fonn D, Woods J, Gordon K, Jones L, Jones D. Myopia prevalence in canadian school children Optom Vis Sci 2016;93: E-abstract 165328 [ PDF ]

2012

Jones D, Paquette L, Despres M, Nandakumar K, Woods C. Ease of contact lens fitting and training in a child and youth population Contact Lens & Anterior Eye 2012;35, S1:e2

Jones D, Woods C, Paquette L, Nandakumar K. The acceptability of contact lens wear to children and teenagers Contact Lens & Anterior Eye 2012;35, S1:e45-e46

2011

Paquette L, Jones D, Mespres M, Nandakumar K, Woods C. Ease of contact lens fitting and training in a child and youth population Optom Vis Sci 2011;88:E-abstract 115833

2008

Jones D, Jones L. The use of O2Optix Custom in a case of pediatric aphakia Contact Lens & Anterior Eye 2008;31, 5:246

2007

Jones D, Jones L. The use of 02Optix Custom in a case of pediatric aphakia Optom Vis Sci 2007;84: E-abstract 075149

2006

Jones D, Woods C, Jones L, Morgan P. The use of silicone hydrogel contact lenses by Canadian optometrists: 2000-2006 Optom Vis Sci 2006;83: E-Abstract 065281

2005

Woods C, Jones D, Jones L, Morgan P. Canadian optometrists prescribing habits, a six-year period (2000-05) Optom Vis Sci 2005;82: E-abstract 055128

2002

Hrynchak P, Hutchings N, Jones D, Simpson T. A comparison of cup-to-disc ratio measurement in normal subjects using OCT image analysis of the optic nerve head and stereo biomicroscopy Optom Vis Sci 2002;79, 12s:90

2001

Hrynchak P, Simpson T, Jones D, Hutchings N. A comparison of cup-to-disc ratio evaluation in normal subjects using stereo biomicroscopy and a digital image of the optic nerve Optom Vis Sci 2001;78, 12s:65

Jones D, Schulze M, Simpson T. The Application of Clinical Grading Scales by Trained and Non-trained Observers Contact Lens & Anterior Eye 2001;2523-51

Schulze M, Jones D, Simpson T. The Production of an Enhanced Grading Scale for Determination of Ocular Hyperaemia (BCLA 2001 Da Vinci Award) Contact Lens & Anterior Eye 2001;2523-51

2000

Averbeck K, Jones D, Westall C. A comparison of two logmar-based crowded visual acuity tests for the assessment of vision in children American Academy of Optometry, Orlando, 2000

Jones D, Jones L, Dumbleton K, Pritchard N. Recording of contact lens complications using digital image technology Contact Lens & Anterior Eye 2000;23, 4:160

Schulze M, Jones D, Simpson T. The production of an enhanced grading scale for determination of ocular hyperemia Optom Vis Sci 2000;77, 12s:184

1999

Jones D, Jones L, Simpson T. The subjective satisfaction of presbyopes wearing disposable/frequent replacement lenses: a comparison of monovision versus reading over-spectacles Optom Vis Sci 1999;76, 12s:174

Jones D, Jones L, Simpson T. The subjective satisfaction of presbyopes wearing disposable/frequent replacement lenses: a comparison of monovision versus reading over-spectacles Contact Lens & Anterior Eye 1999;22, 4:162

Jones L, Jones D, Franklin V, Tonge S, Tighe B. Multi-purpose solution effects on the clinical performance and spoilation of daily wear monthly planned-replacement contact lenses Contact Lens & Anterior Eye 1999;22, 4:155

Jones L, Jones D, Simpson T. The impact of replacement frequency and care regimen on subjective satisfaction with disposable/frequent replacement lenses Optom Vis Sci 1999;76, 12s:172

Jones L, Jones D, Simpson T. The influence of replacement frequency and care regimens on subjective satisfaction with disposable/frequent replacement lenses Contact Lens & Anterior Eye 1999;22, 4:147

1998

Jones D, Jones L, Franklin V, Tonge S, Tighe B. Multi-purpose solution effects on the clinical performance and spoilation of daily-wear monthly planned replacement contact lenses Optom Vis Sci 1998;75, 12s:276

Jones D, Jones L, Franklin V, Tonge S, Tighe B. Multi-purpose solution effects on the clinical performance and spoilation of daily-wear monthly planned replacement contact lenses B&L ERS Symposium (Prague), 1998

Jones D, Jones L, Franklin V, Tonge S, Tighe B. Multi-purpose solution effects on the clinical performance and spoilation of daily-wear monthly planned replacement contact lenses Tenth Symposium on the Material Science and Chemistry of Contact Lenses (New Orleans), 1998

1997

Jones L, Jones D, Langley C, Houlford M. The influence of solution regimes on the in vivo wettability of Group II and Group IV frequent replacement lenses Contact Lens & Anterior Eye 1997;20171

1996

Jones L, Jones D, Houlford M. A clinical comparison of three polyhexanide-preserved multi-purpose contact lens solutions Optom Vis Sci 1996;73, 12s:95

Jones L, Jones D, Houlford M. A clinical comparison of three polyhexanide-preserved multi-purpose contact lens solutions BCLA Conference (Birmingham, UK), 1996

Jones L, Jones D, Houlford M. A clinical comparison of three polyhexanide-preserved multi-purpose contact lens solutions B&L ERS Symposium (Seville), 1996

Jones L, Jones D, Langley C, Houlford M. Reactive or proactive contact lens fitting - does it make a difference? B&L Symposium (Seville), 1996

1995

Jones D, Jones L. Problems, problems, problems J BCLA 1995;18, 4:139

Jones L, Jones D, Langley C, Houlford M. Reactive or proactive contact lens fitting - does it make a difference? Optom Vis Sci 1995;72, 12s:146

Jones L, Jones D, Langley C, Houlford M. Reactive or proactive contact lens fitting - does it make a difference? BCLA Conference (London), 1995

1994

Jones D, Jones L. Every picture tells a story J BCLA 1994;17, 4:154

Jones L, Davies I, Jones D. The time dependent effect of hydrogen peroxide neutralisation on the fitting characteristics of group IV disposable lenses B&L ERS (Lisbon), 1994

Jones L, Jones D, Langley C. A comparative evaluation of two high Dk aspheric RGP contact lenses J BCLA 1994;17, 4:154

Jones L, Jones D, Langley C. A comparative evaluation of two high Dk aspheric RGP contact lenses B&L ERS (Lisbon), 1994

1993

Jones L, Davies I, Jones D. Effect of hydrogen peroxide neutralisation times on the fitting characteristics of group IV disposable contact lenses Opthal Physiol Opt 1993;14, 1:108

Continuing Education Presentations

2023

Jones D. Optical Biometry - The long and the short of it Global Specialty Lens Symposium, Las Vegas, Jan 19, 2023

2022

Carnt N, Jones D. Children and Contact Lenses BCLA Focus Hybrid Conference, Brimingham, UK, Jun 12, 2022

Jones D. Myopia Control: Where we are and where we are going THE Myopia Meeting, Toronto, Canada, Nov 6, 2022

Jones D. Myopia Management – Non-pharmacological options Eye Recommend National Training Event, Victoria, BC, April 23, 2022

Jones D. CORE involvement in the MiSight clinical story 10th Canadian Optometry School Research Conference, Montréal, Canada, Dec 4, 2022

Jones D. Myopia Control - Putting on the brakes Waterloo Eye Institute annual CE and trade show. Markham, ON, Canada, November, 2022

Jones D. Optical Biometry - The long and the short of it Global Myopia Symposium, Virtual, September, 2022

Jones D. Myopia Control - Where Are We now and Where We Are Going Canadian Association of Optometrists Congress, St John's, Newfoundland, Jul 7, 2022

Jones D. Instrumentation for myopia control - what you need to be successful Canadian Association of Optometrists Congress, St John's, Newfoundland, Jul 7, 2022

Jones D. Clinical Pearls New Brunswick Association of Optometrists Annual Meeting (Virtual), Sep 29, 2022

Jones D. Introduction to myopia management New Brunswick Association of Optometrists Annual Meeting (Virtual), Sep 29, 2022

Jones D. Myopia management – non-pharmacological options Eye Recommend National Training Event, Ottawa, Oct 1, 2022

Jones D, Jones L.. Myopia control: The good, the bad and the ugly Canadian Association of Optometrists Congress, St John's, Newfoundland, Jul 7, 2022

Logan N, Jones D. MiSight® 1 day contact lenses what we now know: 6 Years of Evidence and Beyond BCLA Focus Hybrid Conference, Brimingham, UK, Jun 12, 2022

Walline J, Pal S, Jones D. Knowledge is the key to control of myopia Optometry Times EyeCON, Virtual Meeting, Panel Discussion, Marco Island, Florida, USA, Dec 16 , 2022

2021

Jones D. Myopia management – the non-pharmaceutical options The 19th Hong Kong International Optometric Symposium, Virtual Keynote Address, November, 2021

Jones D. Myopia Management in Clinical Practice: Module 1: Why is myopia management essential in clinical practice Canadian Association of Optometrists – Online CE modules for Canadian ODs, March, 2021

Jones D. Myopia Management in Clinical Practice: Module 2: Myopia Management options Canadian Association of Optometrists – Online CE modules for Canadian ODs, March, 2021

Jones D. Myopia Management. Online module for Canadian Certified Optometric Assistants Canadian Association of Optometrists, Virtual presentation, April , 2021

Jones D. Myopia – How to control the Epidemic British Columbia Doctors of Optometry, Virtual Presentation, September 17, 2021

Jones D. Instrument Fundamentals - Workshop Global Myopia Symposium, Virtual Conference, September 19, 2021

Jones D. Multifunction Instruments Global Myopia Symposium, Virtual Conference, September 19, 2021

Jones D. Biometry in Myopia Management IACLE Global Webinar, September 22, 2021

Jones D, Thakrar V. Myopia Management in Clinical Practice: Module 3: How to implement myopia management in to clinical practice Canadian Association of Optometrists – Online CE modules for Canadian ODs, March, 2021

2019

Jones D. Are you being short-sighted about myopia OSI annual summit, Whistler, BC, Canada, 2019

Jones D. Are you being short-sighted about myopia CAO Congress, Victoria, BC, Canada, 2019

2018

Jones D. Myopia management – from research to clinical practice Clinical and Experimental Optometry. Webinar, 2018

Jones D. Myopia, can we control the epidemic Eye Trust Network. Toronto, 2018

Jones D. Examination of the pediatric patient Manitoba Association of Optometrists annual meeting. Brandon, Manitoba, 2018

Jones D. Prescribing for the pediatric patient Manitoba Association of Optometrists annual meeting. Brandon, Manitoba, 2018

Jones D. Controlling the myopia epidemic Manitoba Association of Optometrists annual meeting. Brandon, Manitoba, 2018

Jones D. What went wrong? Manitoba Association of Optometrists annual meeting. Brandon, Manitoba, 2018

Jones D. Myopia Control Ontario Association of Optometrists annual meeting. Toronto, ON, 2018

Jones D. Examination of the pediatric patient Ontario Association of Optometrists annual meeting. Toronto, ON, 2018

Jones D. Myopia- The Epidemic IRIS meeting. Puerta Vallarta, 2018

Jones D. Myopia control, results of MiSight study Training webinar, 2018

Jones D, Woods J. Controlling the myopia epidemic Fall CE Manitoba Association of Optometrists, 2018

Woods J, Jones D. What went wrong? Fall CE Manitoba Association of Optometrists, 2018

2017

Jones D. Myopia – can we control the epidemic? CooperVision annual sales meeting, Orlando, Florida, 2017

Jones D. Myopia. It’s an epidemic, can anything be done? Salon Vision, Montreal, 2017

Jones D. Myopia – The epidemic Nova Scotia Association of Optometrists Annual Meeting, Halifax, NS, 2017

Jones D. Myopia, can we control the epidemic Nova Scotia Association of Optometrists Annual Meeting, Optometric Personnel. Halifax, NS , 2017

Jones D. Pediatrics in Practice Nova Scotia Association of Optometrists Annual Meeting, Optometric Personnel. Halifax, NS , 2017

Jones D. Myopia control – Dream or reality Journées Optométriques. Quebec City , 2017

Jones D. Myopia prevalence and what it means to optometry British Columbia Association of Optometrists, Vancouver, 2017

Jones D, Jones L. Overcoming challenges to growth in a competitive environment Eyerecommend seminar, Costa Rica, 2017

Jones D, Leat S. Children’s Vision School of Optometry & Vision Science 50th anniversary celebration event, 2017

Jones L, Jones D. Retaining patients and sales in today’s optometric practice Eyerecommend seminar, Costa Rica, 2017

2015

Jones D. Pediatrics - when an what to prescribe University of Waterloo CE cruise, 2015

Jones D. Myopia control - dream or reality University of Waterloo CE cruise, 2015

2014

Jones D. Chidren's Vision Pre-School and Beyond Ontario Association of Optometrists annual meeting. Niagara Falls, ON, 2014

Professional Publications

2023

Morgan P, Woods CA, Tranoudis IG, Efron N, Jones L, Faccia L, Rivadeneira D, Teufl M, Grupcheva CN, Jones D, Rodriguez Cely LM, Adsersen A, Santodomingo-Rubido J, Bloise L, Erdinest N, Montani G, Itoi M, Bendoriene RL, Mulder J, van der Worp E, can Mierlo T, Romualdez-Oo J, Abesamis-Dichoso C, Gonzalez-Meijome JM, Macedo-de-Araujo RM, Johansson O, Hsiao J, Nichols JJ. International contact lens prescribing in 2022 Contact Lens Spectrum 2023;38, January: 28-35

2022

Bzovey B, Jones D.. Myopia measurements made easy Optician 2022, 18 March: 20-23 [ Show Abstract ]

Whether setting up a new practice, upgrading current equipment or choosing new equipment, the available choices can be overwhelming. There are many decisions to be made, including those based on cost, space and functionality. And with substantial growth opportunities within primary care practice, from services including specialty contact lens practice, dry eye and myopia management, making the right decision is important.
Practitioners looking for innovative instruments to support their myopia control practice should consider the clinical information required to manage their patients, including refractive error, keratometry and axial length. In addition, attention should be given to the footprint that any new equipment takes up.
Practitioners wishing to best utilise valuable practice space with a multi-function instrument can now consider the Myopia Master from Oculus (figures 1 and 2) as a standalone option for their myopia management practice. This sleek, all-in-one unit will check many boxes on the list of clinical measurement and functionality requirements to support this fast-moving area of clinical practice.

Jones D. CAO Position Statement on Myopia Management Canadian Association of Optometrists - Position Statement; Jan 19, 2022

Jones D. Article Review: Long-term Effect of Dual-focus Contact Lenses on Myopia Progression in Children: A 6-year Multicenter Clinical Trial https://contactlensupdate.com/2022/09/01/article-review-long-term-effect-of-dual-focus-contact-lenses-on-myopia-progression-in-children-a-6-year-multicenter-clinical-trial/ 2022;67

Morgan P, Woods CA, Tranoudis IG, Efron N, Jones L, , Merchan BNL, Teufl M, Grupcheva CN, Jones D, Beeler-Kaupke M, Qi P, Tan KO, Rodriguez Cely LM, Belova S, can Beusekom M, Ravn O, Santodomingo-Rubido J, Bloise L, Plakitsi A, Végh M, Erdinest N, Montani G, Itoi M, Bendoriene RL, Mulder J, van der Worp E, Ystenaes AE, Romualdez-Oo J, Abesamis-Dichoso C, Gonzalez-Meijome JM, Macedo-de-Araujo RM, Johansson O, Sim D, Hsiao J, Nichols JJ. International contact lens prescribing in 2021 Contact Lens Spectrum 2022;37, 1: 32-38

2021

Morgan P, Woods CA, Tranoudis IG, Efron N, Jones L, Grupcheva CN, Jones D, Beeler-Kaupke M, Qi P, Tan KO, Rodriguez Cely LM, Belova S, Ravn O, Santodomingo-Rubido J, Bloise L, Plakitsi A, Végh M, Erdinest N, Montani G, Itoi M, Bendoriene RL, Mulder J, van der Worp E, Ystenaes AE, Romualdez-Oo J, Abesamis-Dichoso C, Gonzalez-Meijome JM, Belousov V, Johansson O, Hsiao J, Nicholes JJ.. International contact lens prescribing in 2020 Contact Lens Spectrum 2021;36, January: 26-32 [ Show Abstract ]

This article is our 20th consecutive annual report of international contact lens prescribing for Contact Lens Spectrum. The premise of the work is simple. As an alternative to asking a cross section of contact lens wearers about the lenses that they use and the basis on which the lenses are worn, we move upstream in the process and directly survey those who are fitting contact lenses in numerous markets around the world. This presents a more “leading edge” indicator of contact lens fitting habits; the lenses fitted today are those sold tomorrow. The aim here is to provide summary information for colleagues in clinical practice, industry, and academia about contact lens prescribing behaviors to inform their patient management, research and development, and educational curricula, respectively.

2020

Jones D. Myopia Management: What Are the Options? Optometric Management 2020;June [ Show Abstract ]

There have been alarming predictions regarding the rate of increase of myopia for the next three decades. Of particular concern is the predicted increase in high myopia, with reports that almost 10% of the world’s population will exhibit myopia in excess of -5.00 D by 2050. Given the abundance of evidence in the literature that shows myopia progression can be reduced, practitioners need to be proactive with their young patients and introduce the concept of myopia control as soon as there is evidence of a myopic refractive error. Additionally, practitioners need to be familiar with the treatment options available.

Jones D. Measure Axial Length to Guide Myopia Management Review of Myopia Management 2020;March 1. [ Show Abstract ]

Myopic patients must be managed and monitored closely. Myopia can no longer be considered as a benign refractive error, and it cannot be managed by traditional optical means. With the growing prevalence of myopia, and the increased risk of ocular pathology associated with high myopia, eye care professionals (ECPs) need to assess their patients for risk factors that may lead to its onset.

Jones D. What Myopia Management Is and What It Is Not Review of Myopia Management 2020;July [ Show Abstract ]

Almost without exception, a paper or article written about myopia starts with the alarming statistics and predictions regarding the prevalence of myopia worldwide. Globally, clinicians and researchers are hopefully well aware by now of the projection that by 2050, 50 percent of the world’s population will be myopic. While this traditionally sets the scene for the need for action to combat this epidemic, what exactly does the term myopia management mean, and how can it be put into practice?

Morgan P, Woods CA, Tranoudis IG, Efron N, Jones L, Merchan B, Grupcheva CN, Jones D, Beeler-Kaupke M, Krasnanska J, Belova S, Ravn O, Santodomingo-Rubido J, Taste P, Malet F, Plakitsi A, Végh M, Erdinest N, Montani G, Itoi M, Bendoriene J, Ramos Gómez RL, Pintor R, Mulder J, Van Der Worp E, Lam W, Ystenæs AE, Romualdez-Oo J, Abesamis-Dichoso C, González-Méijome J, Gierow P, Pettersson LA, Hsiao J, Nichols JJ . International Contact Lens Prescribing in 2019 Contact Lens Spectrum 2020;35, January: 26-32 [ Show Abstract ]

Since the turn of the century, we have presented annual overviews of contact lens prescribing trends in Contact Lens Spectrum. The work was initiated to help eyecare practitioners who are active in contact lenses to benchmark their fitting habits against their peers as well as to provide context to researchers in the field working on next-generation products. The database of lens fits collected over this period now exceeds 400,000, and the information has been collected across 71 markets.

In each targeted market, we supply survey forms and request that practitioners complete generic information about the first 10 contact lens fits conducted after receipt. This fundamental approach has remained unchanged since the first survey was conducted in the United Kingdom in 1996, with only minor changes to the form to account for new products becoming available on the market. For example, an option for “anti-myopia” (now termed “myopia control”) lenses was introduced in the 2011 survey to allow us to track developments in that area.

The distribution of the survey form varies. Some markets continue to use paper forms with a reply-paid envelope; others distribute and collect the same form via e-mail or a web-based questionnaire. The work is coordinated in each market by national coordinators who are listed as co-authors of this paper.

The survey forms request information about the age and sex of each contact lens patient fitted in addition to data about the material, design, replacement frequency, and wearing modality of the fitted lenses; anticipated weekly usage; and care system type. Each fit is weighted based on the estimated annualized number of fits for each practitioner. The data are finally collated at both the University of Manchester in the United Kingdom and at the University of Waterloo in Canada.

2019

Jones D. Summary: IMI – Clinical Myopia Control Trials and Instrumentation report ContactLensUpdate.com 2019

Jones L., Jones D., Jones R. Contact lenses: Beyond 2020 Pharma (Australia) 2019, Dec: 12-13

Morgan P, Woods CA, Tranoudis IG, Efron N, Jones L, Aighamdi W, Nair V, Merchan B NL, Teufl M, Grupcheva CN, Jones D, Beeler-Kaupke M, Lan W, Qi P, Tan KO, Krasnanska J, Pult H, Ravn O, Santodomingo-Rubido J, Tast P, Malet F, Plakitsi A, Végh M, Erdinest N, Chande PK, Montani G, Itoi M, Bendoriene, Ramos Gómez RL, Pintor R, Van Der Worp E, Lam W, Ystenæs AE, Romualdez-Oo J, Abesamis-Dichoso C, González-Méijome JM, Belousov V, Sim D, Stabuc Silih M, Gierow P, Pettersson LA, Hsiao J, Nichols JJ. International Contact Lens Prescribing in 2018 Contact Lens Spectrum 2019;34, January: 26-32

2018

Jones D, Woods J. Maximize the opportunity for part-time contact lens wear Contact Lens Spectrum 2018;33, December: 12-13

Jones D, Woods J. Soft torics: Putting things straight Contact Lens Spectrum 2018;33, September: 12-13

Jones D, Woods J. Accommodating presbyopes: Who does it best? Contact Lens Spectrum 2018;33, June: 12-13

Jones D, Woods J. North America - Independence or not? Contact Lens Spectrum 2018;33, March: 14-15

Morgan P, Woods C, Tranoudis I, Helland M, Efron N, Jones L, Merchan N, Teufl M, Van Beusekom M, Grupcheva C, Jones D, Beeler-Kaupke M, Krasnanska J, Pult H, Ravn O, Santodomingo-Rubido J, Tast P, Malet F, Plakitsi A, Végh M, Erdinest N, Jafari A, Montani G, Itoi M, Bendoriene J, Ziziuchin V, Van Der Worp E, Lam W, Ystenæs A, Romualdez-Oo J, Abesamis-Dichoso C, González-Méijome J, Sim D, Stabuc Silih M, Hsiao J, Nichols J. International Contact Lens Prescribing in 2017 Contact Lens Spectrum 2018;33, January: 28-33

2017

Morgan P, Woods C, Tranoudis I, Helland M, Efron N, Jones L, Van Beusekom M, Grupcheva C, Fico F, Jones D, Beeler-Kaupke M, Qi P, Tan K, Krasnanska J, Pult H, Ravn O, Santodomingo-Rubido J, Végh M, Fan C, Erdinest N, Jafari A, Montani G, Itoi M, Chu B, Bendoriene J, Ziziuchin V, Van Der Worp E, Lam W, Ystenæs A, Romualdez-Oo J, Abesamis-Dichoso C, González-Méijome J, Belousov V, Cierow P, Stabuc Silih M, Hsiao J, Nichols J. International Contact Lens Prescribing in 2016 Contact Lens Spectrum 2017;32, January: 30-35

2016

Jones D. Global trends in myopia management: A review ContactLensUpdate.com 2016

Morgan P, Woods C, Tranoudis I, Helland M, Efron N, Jones L, Teufl M, Grupcheva C, Lemos R, Jones D, Beeler-Kaupke M, Qi P, Tan K-O, Belikova J, Pult H, Ravn O, Santodomingo-Rubido J, Malet F, Plakitsi A, Vegh M, Erdinest N, Jafari A, Montani G, Itoi M, Sun B, Bendoriene J, van der Worp E, Pintor R, Monroy J, Chia J, Awasthi S, Lam W, Romualdex-Oo J, Abesamis-Dichoso C, Gonzalez-Meijome J, Gierow P, Stabuc Silih M, Hsiao J, Nichols J. International contact lens prescribing in 2015 Contact Lens Spectrum 2016;31(1):24-29

2015

Morgan P, Woods CA, Tranoudis IG, Helland M, Efron N, Jones L, Dávila-Garcia E, Magnelli P, Teugl IM, Grupcheva CN, Jones D, Beeler-Kaupke M, Tan K, Pesinova A, Pult H, Ravn O, Santodomingo J, Malet F, Plakitsi A, Végh M, Erdinest N, Chande PK, Itoi M, Bendoriene J, van der Worp E, Pintor R, Moroy JL, Chia J, Awasthi S, Lam W, Romualdez-Oo J, Abesamis-Dichoso C, González-Méijome JM, Belousov V, Gierow P, Stabuc Silih M, Hsiao J, Nichols JJ. International contact lens prescribing in 2014 Contact Lens Spectrum 2015;30, 1: 28-33

2006

Morgan P, Efron N, Woods C, Jones D, Grin HJ, Tranoudis Y, Itoi M, van der Worp E, Phillips G, Belousov V, Helland M, Ghunholm-Henriksson IL, Yeo A, Barr J. What contact lenses are fitted today (and tomorrow)? Global Contact Lens 2006;4212-15

Morgan P, Efron N, Woods C, Jones D, Pesnova A, Grein HJ, Tranoudis Y, Chandrinos A, Itoi M, van der Worp E, Phillips G, Belousov V, Helland M, Thunholm-Henricksson IL, Ong A, Hung L, Monatani G, Barr J. International contact lens prescribing in 2005 Contact Lens Spectrum 2006;21, 1: 35-39

Morgan PB, Efron N, Woods CA, Jones D, Pesinova A, Grein HJ, Tranoudis IG, Chandrinos A, Itoi M, van_der_Worp E, Phillips G, Belousov V, Helland M, Thunholm-Henriksson IL, Ong A, Hung LK, Barr JT. International contact lens prescribing in 2005 Contact Lens Spectrum 2006;21, 1: 35-39

2005

Morgan PB, Efron N, Woods CA, Jones D, Grein HJ, Tranoudis Y, Monatani G, Marani E, Itoi M, van der Worp E, Phillips G, Helland M, Thunholm-Henriksson IL, Yeo Chee Hong A, Barr JT. International contact lens prescribing 2004 Contact Lens Spectrum 2005;20, 1: 34-37

1995

Jones L, Jones D. Three and nine O'clock corneal staining Optician 1995;210, 5526: 20-22

Jones L, Jones D. Blepharitis Optician 1995;210, 5522: 32-33

Jones L, Jones D. RGP lens binding (adherence) Optician 1995;210, 5517: 28-29

Jones L, Jones D. SMILE staining and dehydration Optician 1995;210, 5513: 24-25

Jones L, Jones D. Dimple-veil staining Optician 1995;210, 5509: 32

Jones L, Jones D. Superior epithelial arcuate lesions Optician 1995;209, 5500: 32-33

Jones L, Jones D. Corneal staining assessment Optician 1995;209, 5496: 30-32

Jones L, Jones D. Meibomian gland dysfunction Optician 1995;209, 5491: 30-31

Jones L, Jones D, Langley C. The comparative performance of two aspheric rigid gas permeable lens designs Optician 1995;210, 5526: 28-36

Jones L, Jones D, Langley C, Houlford M. The subjective response of 100 consecutive patients to 1-day disposable lenses Optician 1995;211, 5536: 28-32

1991

Jones L, Jones D. Persecon 92E: design and clinical performance Optician 1991;203, 5333: 16-23

Books

2007

Jones L, Jones D. Common Contact Lens Complications: Recognition and Management Elsevier. 2007.

2001

Jones L, Jones D. Slit Lamp Biomicroscopy In: The Cornea , ed. Nathan Efron. Butterworth-Heinemann. 2001.

2000

Jones L, Jones D. Common Contact Lens Complications: Recognition and Management Butterworth-Heinemann. 2000.