OCULAR RESPONSES ASSOCIATED WITH FREQUENT REPLACED AND NON-REPLACED HYDROGEL LENSES

Desmond Fonn

Abstract

A clinical trial is being conducted at our Centre to determine if the ocular response is improved by wearing soft lenses that are replaced frequently versus non-replaced lenses. The 119 enrolled non-lens wearers were randomly allocated into three groups: 1 and 3 month replacement and a non-replacement group. All subjects were fitted with a .04 mm thick hema (38% H2O)[subscript] lens to be worn on a daily wear basis only. A single multi-purpose solution was prescribed for cleaning and disinfection. Of 98 subjects completing one year of the study, a significantly greater number in the non-replaced lens group had microcysts and corneal infiltrates with a significantly higher incidence of corneal staining (p=0.0060) and limbal injection (p=0.0001). All lenses from the study were examined in vitro and graded by a masked observer using dark field stereomicroscope. The amount of deposition observed was least on the 1 month replacement lenses (1 month CORNEAL PHOTODOCUMENTATION AND PHOTOGRAPH READING

METHOD FOR THE CONTACT LENS EVALUATION IN KERATOCONUS (CLEK) Q 150 EYE STUDY

Details

Year: 1992

Program Number: 2:45 pm

Author Affiliation: n/a

Co-Authors: Nicola Pritchard, B.App.Sc.Opt., Kathryn Weed, Rick Potvin

Co-Author Affiliation: n/a

Room: Great Hall North