summer meeting lid and lacrimal apparatus pathogenesis of chronic blepharitis

ABSTRACT

This study was conducted on 140 cases of chronic blepharitis, and 25 of age and sex matched normal controls. They were all evaluated ophthalmologically, bacteriologically and dermatologically. It was found that blepharitis can be classified into 5 groups seborrheic, infective, mixed infective/seborrheic, meibomian and others. Pathogenesis of blepharitis includs various local and systemic factors. A significant role was found for external irritants, prolonged exposure to strong sun, unhyglenic surroundings, insufficient sleep and local ocular cosmetics. From this study, it was found that bacteria and fungi have no primary role in the pathogenesis of many of the cases of blehparitis even in some of the infective group