Corneal Infections

Sometimes the cornea can be damaged when a foreign object penetrates its tissue, as from a poke in the eye. Bacteria and fungi from a contaminated contact lens also can pass into the cornea and cause a painful inflammation and corneal infection called keratitis. Such infections impair vision, produce corneal discharges and can erode the cornea. Infections of the cornea sometimes lead to scarring of the cornea, reducing vision and possibly even requiring a corneal transplant.

Generally, the deeper the infection has penetrated, the more severe will be the symptoms and complications. It is important for contact lens wearers to bear in mind that although corneal infections are relatively infrequent, they are the most serious complication of contact lens wear.

The treatment of minor corneal infections is typically with anti-bacterial eye drops. If the condition is serious, an intensive antibiotic or anti-fungal treatment to eliminate the infection may be required. In some cases, steroid eye drops to reduce inflammation will be required.

Seeing an ophthalmologist regularly for several months may be necessary to eliminate the problem.