Keratitis

Keratitis is an inflammatory disease of the cornea, caused either by trauma from contact lenses, a foreign body in the eye, too intense light, lack of vitamin A, insufficient moisturising of the eye, allergy, or direct infection by microorganisms. The contact lens may become a vector of transmission of the infection to the surface of the eye, because their presence will change the microenvironment of the cornea, undermining its defence mechanisms and thus contribute to microbe invasion of the cornea. Increased risk of inflammatory disease occurs amongst clients with prolonged wearing of contact lenses. Infectious keratitis is manifested with discomfort and requires urgent treatment.