- 作者：Deborah Jones ; BSca ; dajones@uwaterloo.ca" class="auth_mail" title="E-mail the corresponding author (FAAO) ; Craig Woods ; PhDd (FAAO ; FBCLA) ; Lyndon Jones ; PhDa (FAAO ; FBCLA) ; Nathan Efron ; PhD ; DScb (FAAO) ; Philip Morgan ; PhDc (FAAO ; FBCLA)
- 关键词：Contact lens ; Survey ; Lens design ; Lens material ; Prescribing trends
- 刊名：Contact Lens and Anterior Eye
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：39
- 期：6
- 页码：402-410
- 全文大小：1342 K
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.