Piggyback Lenses in Keratoconus
作者:
J H C Kok,
C van Mil,
期刊:
Cornea
(OVID Available online 1993)
卷期:
Volume 12,
issue 1
页码: 60-64
ISSN:0277-3740
年代: 1993
出版商: OVID
关键词: Keratoconus;Rigid contact lenses;Epithelial pathology;Aspheric combination lenses;Piggyback wearing system
数据来源: OVID
摘要:
Intolerance to rigid contact lenses in keratoconus may occur as a result of epithelial pathology or a suboptimal fitting. The application of a soft lens as a bandage makes it possible to tolerate a rigid lens over it. This study gives the results of 40 eyes in 26 patients who were consecutively fitted with a new aspheric combination lens. Thirty-five eyes (87.5%) showed no discomfort, acceptable wearing time, and visual acuity. Four of these eyes showed an improvement of the corneal condition, eliminating the need for a further piggyback wearing system. Failures were found in five eyes (12.5%), which were caused by giant papillary conjunctivitis (two eyes), severe keratoconus (one eye), difficulty in lens handling and lack of motivation (two eyes). The successful use of an aspheric piggyback combination lens in rigid lensintolerant keratoconus may preclude early surgical therapy.
点击下载:
PDF
(382KB)
返 回