Effects of different lens materials and cleaning solutions on the surface integrity of contact lenses during the cleaning cycle

Abstract

Proper lens cleaning is one of the most important factors in successful contact lens wear. Improper cleaning may result in deposits leading to immune reactions, loss of sharp vision and loss of wearing time. A major side effect of lens cleaning is scratching of the lens surface. The scratches provide attachment points for deposits and make the lens less comfortable. This is a study of the damage caused by the cleaning cycle of a contact lens over a simulated three to six month period. Six different lenses and six different cleaning solutions were compared and rated according to number of resultant scratches.