Publications

Showing 25 results out of 475 in total.

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 P, Jones L, Gifford K.. Orthokeratology for myopia control in Covid-19 era Optician 2020, August: 12-14 [ Show Abstract ]

The year 2020 was affectionately termed ‘the year of optometry’ but the new decade has brought numerous challenges to the profession as the ongoing Covid-19 pandemic has seen normal clinical practice greatly disrupted. As the lockdown begins to ease, many aspects of normal optometric and optical functions are being reconsidered.

Due to their application to the ocular surface, the use of contact lenses has faced particular scrutiny and some media reports have advocated the cessation of contact lens use despite the absence of clear evidence for an increased risk of Covid-19 infection or any increase of eye touching during lens wear. Indeed, a recent review of the literature found no relationship between lens use and Covid-19 infection 1 and a separate report indicated that coronaviruses such as SARS-CoV-2 (the virus which causes Covid-19) are unlikely to bind to ocular surface cells to initiate infection.2 Related to this, although there are a number of reports of conjunctivitis occurring prior to symptoms of Covid-19, 3,4 a United Kingdom report of over 20,000 hospital patients with the disease found that only 0.3% presented with conjunctivitis. 5 Although more work is required to fully understand this area and new information is becoming available daily, it appears that the ocular surface is not a major point of ingress for the virus 6 and overall, contact lens wear continues to be safe.

Professional bodies and regulatory agencies including the College of Optometrists, 7 the British Contact Lens Association8 and the United States Centers for Disease Control and Prevention 9 concur that there is no association between contact lens use and Covid-19 infection. However, all these groups stress the need for hygienic contact lens use at this time, a recommendation which in part may relate to the need to minimise the requirement for contact lens wearers to seek clinical advice at a time where optometric services may not be fully operational and other healthcare facilities are also offering a reduced service. Furthermore, contact lens wearers should ideally refrain from attending emergency departments where they may be exposed to the virus.

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

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

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

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

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

Morgan P, Woods CA, Tranoudis IG, Efron N, Jones L, Faccia L, Rivadeneira D, Grupcheva CN, Jones D, Rodriguez Cely LM, Adsersen A, Santodomingo-Rubido J, Muselier-Mathieu A, Vegh M, Erdinest N, Montani G, Itoi M, Bendoriene RL, Mulder J, van der Worp E, van Mierlo T, Ystenaes AE, Romualdex-Oo J, Abesamis-Dichoso C, Gonzalez-Meijome JM, Macedo-de-Araujo RM, Johansson O, Hsiao J, Nichols JJ. International contact lens prescribing in 2023 Contact Lens Spectrum 2024;39, January/February: 20-22,24,26-28

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

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.

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.

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

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

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

Nagaarudkumaran N. Fast forward to the future - potential future ocular drug delivery technologies Contact Lens Spectrum 2022;37, August: 14

Ng AY. Variations in tea tree oil concentrations Optician 2014;248, 6478: 11

Ng AY. Makeup and your eyes: friend or foe? ContactLensUpdate.com 2014

Ng AY. Summary: Report of the Definition and Classification Subcommittee ContactLensUpdate.com 2014

Ng AY. Ocular surface implications of cosmetic products Optometry Today 2016, January:

Ng AY. Summary: TFOS DEWS II Diagnostic methodology report ContactLensUpdate.com 2017;October, 38:

Ng AY. Summary: IMI Myopia genetics report ContactLensUpdate.com 2019

Ng AY. CLEAR report summary: Contact Lens Complications https://contactlensupdate.com/2021/06/15/contact-lens-complications/ 2021;60

Ng AY. Replace your contact lenses on time. Patient handout https://contactlensupdate.com/2022/02/28/patient-handout-replace-your-contact-lenses-on-time/ 2022;64

Ng AY. Fast Forward to the Future: Going Green with Daily Disposables Contact Lens Spectrum 2023;38, June: 47