An oblique bitoric rigid contact lens fitting for the management of lens subluxation in Marfan syndrome
نویسندگان
چکیده
منابع مشابه
Keratoconus: Diagnosis, contact lens fitting and management
Numerous studies have reviewed the prevalence of keratoconus. Estimates lie between 50 and 230 per 100,000 in the general population, approximately one per 2000.2,7,8 When considering the prevalence of keratoconus the differing diagnostic criteria used in different studies need to be taken into account. A much higher prevalence may be found as corneal topography is used more, thanks to its grea...
متن کاملContact lens fitting today
RGP materials In choosing appropriate materials, it is important to remember that keratoconic patients (as well as in other primary corneal ectasias) demand high levels of comfort because they wear their lenses for long periods of time. With steep high minus lenses, which are often required, materials with high dimensional stability are recommended in order to minimise lens distortion. Mid to h...
متن کاملPrevention of Contact Lens Complications
شمار افراد استفاده کننده از لنزهای تماسی در طی ده سال اخیر، بدلیل سهولت کاربردو در دسترس بودن انواع مختلف لنزها افزایش یافته است. هر چند که این امر موجب می گردد تعداد افراد مستعد به لنزهای تماسی افزایش یابد.
متن کاملContact lens fitting after photorefractive keratectomy.
AIMS/BACKGROUND This study evaluated contact lens fitting and the longer term response of the photorefractive keratectomy (PRK) cornea to lens wear. In PRK for myopia problems such as regression, anterior stromal haze, irregular astigmatism, halo aberration, and anisometropia have been reported. Certain patients therefore require contact lens correction to obtain best corrected visual acuity (B...
متن کاملCorneal response to rigid contact lens wear.
Three adult rhesus monkeys were subjected to 2 and 24 hours of polymethylmethacrylate (PMMA) contact lens wear. The induced corneal changes were examined with the electron microscope. Mild epithelial oedema as well as early degenerative cell changes was present already after 2 hours' wear. Rigid lens wear for 24 hours produced more severe oedema and cell alterations together with premature cell...
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ژورنال
عنوان ژورنال: Clinical and Experimental Optometry
سال: 2017
ISSN: 0816-4622,1444-0938
DOI: 10.1111/cxo.12594