There is a multitude of conditions that can cause eye pain. Usually the pain is caused by problems in specific areas of the eye like the cornea (most common), sclera, conjunctiva, eyelid, or even eye muscles and nerves. Problems with the cornea are often due to foreign objects causing abrasions and infections; but the cornea can also be affected by disorders like keratitis or corneal ulcers. Pain causing eye problems also include glaucoma, uveitis, and endophthalmitis. To prevent eye problems, proper hygiene and protective practices should be observed. It is important to seek help as soon as problems occur as they can lead to permanent problems, even blindness.