PATHOLOGY

Detailed explanation-1: -Keratitis is an inflammation of the cornea-the clear, dome-shaped tissue on the front of your eye that covers the pupil and iris. Keratitis may or may not be associated with an infection.

Detailed explanation-2: -Keratitis resulting from infections (called infectious keratitis) can be caused by bacteria, viruses, fungi, and parasites. Keratitis can also occur a result of other insults to the cornea (called noninfectious keratitis) such as an injury, wearing your contact lenses too long, or very dry eye.

Detailed explanation-3: -Bacterial keratitis is an infection of the cornea (the clear dome covering the colored part of the eye) that is caused by bacteria. It can affect contact lens wearers, and also sometimes people who do not wear contact lenses. Types of bacteria that commonly cause bacterial keratitis include: Pseudomonas aeruginosa.