Cheung Sin Wan, Cho Pauline, Edwards Marion H
Centre for Myopia Research, Department of Optometry and Radiography, The Hong Kong Polytechnic University, Hung Hom, Kowloon, China.
Clin Exp Optom. 2002 Nov;85(6):358-64.
We evaluated the contact lens services provided by practitioners in Hong Kong, the fitting habits of the contact lens practitioners and their attitudes regarding the use of orthokeratology (ortho-k) and silicone hydrogel (SH) lenses for overnight wear.
Questionnaires were sent to all Hong Kong optometrists licensed to prescribe contact lenses.
Two hundred and seventy-five questionnaires (21 per cent) were returned. Most of the respondents (96 per cent) were employed in optical shops and worked in practices that provided contact lens services. The number of new/refit cases per practice per month was about 55, with the percentages of new and refit cases being 48 per cent and 52 per cent respectively. Eighty-eight per cent of the patients were fitted with soft lenses and 10 per cent were fitted with rigid gas permeable (RGP) lenses. Fifty-nine per cent of soft lens patients were fitted with planned replacement (frequent replacement and disposable) soft lenses. Fifty per cent of soft lenses were low water content lenses and 85 per cent of RGP lenses were in low DK (< or = 40) material. Multipurpose solutions and soaking solutions with separate cleaner were the most commonly prescribed care regimens for soft and rigid lenses, respectively. Thirteen per cent of the practitioners provided ortho-k services and the mean number of ortho-k cases per month per ortho-k practitioner was six, the majority of patients being children. DreimLens was the lens design most commonly used and Boston XO the most used material. However, 96 per cent of the responding practitioners had reservations about the practice of ortho-k and the use of SH lenses for overnight wear.
The contact lens market in HK is still dominated by soft lenses, particularly planned replacement lenses, whereas the percentage of RGP fits has changed little in the past decade. Few respondents used overnight ortho-k and SH lenses in view of concerns about their efficacy and long-term safety.
我们评估了香港从业者提供的隐形眼镜服务、隐形眼镜从业者的配镜习惯以及他们对于使用角膜塑形术(OK镜)和硅水凝胶(SH)镜片过夜佩戴的态度。
向所有获得隐形眼镜处方许可的香港验光师发放问卷。
共收回275份问卷(回复率为21%)。大多数受访者(96%)受雇于眼镜店,在提供隐形眼镜服务的机构工作。每家机构每月的新配镜/重新配镜病例数约为55例,新配镜病例和重新配镜病例的比例分别为48%和52%。88%的患者佩戴软性镜片,10%的患者佩戴硬性透气性(RGP)镜片。59%的软性镜片患者佩戴的是定期更换型(频繁更换型和日抛型)软性镜片。50%的软性镜片为低含水量镜片,85%的RGP镜片采用低DK值(≤40)材料。多功能护理液和含单独清洁剂的浸泡液分别是软性和硬性镜片最常用的护理方案。13%的从业者提供OK镜服务,每位OK镜从业者每月的OK镜病例平均数为6例,大多数患者为儿童。DreamLens是最常用的镜片设计,Boston XO是最常用的材料。然而,96%的受访从业者对OK镜的使用和SH镜片过夜佩戴持保留态度。
香港的隐形眼镜市场仍以软性镜片为主,尤其是定期更换型镜片,而在过去十年中,RGP镜片的配镜比例变化不大。鉴于对其有效性和长期安全性的担忧,很少有受访者使用过夜佩戴的OK镜和SH镜片。