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KERATITIS Kerato is the prefix pertaining to the cornea. Keratitis is a pathological condition indicating a corneal inflammation, characterized by loss of luster and transparency. There are many different forms of keratitis. TYPES of KERATITIS Dendritic, herpetic and disciform keratitis are all associated with the herpes simplex virus. Paddy, Rosacea, sclerosal and punctate keratitis are forms with unknown causes. Fungal and microbial keratitis is caused by infections from injuries. Neurtotrophic is also caused by injury, but also may be caused by corneal exposure following damage to corneal nerves, with loss of corneal sensitivity. Superficial keratitis involves the superficial layers of the cornea. After healing, this form of keratitis does not generally leave a scar. Deep keratitis involves deeper layers of the cornea, and the natural course leaves a scar upon healing that impairs vision if on or near the visual axis. This can be reduced or avoided with the use of topical corticosteroid eye drops. TREATMENT Treatment depends on the cause of the keratitis. Infectious keratitis generally requires antibacterial, antifungal, or antiviral therapy to treat the infection. This treatment can involve prescription eye drops, pills, or even intravenous therapy. In addition, contact lens wearers are typically advised to discontinue contact lens wear and discard contaminated contact lenses and contact lens cases. The NEI also supported the Herpetic Eye Disease Study (HEDS), a group of clinical trials that studied various treatments for severe ocular herpes. HEDS researchers reported that oral acyclovir reduced by 41 percent the chance that ocular herpes, a recurrent disease, would return. National eye institute, Retrieved July 7, 2010, http://www.nei.nih.gov/health/cornealdisease/index.asp#3 Wikipedia, Retrieved July 7, 2010, http://en.wikipedia.org/wiki/Keratitis University of Illinois medical center, Retrieved July 7, 2010, http://www.uic.edu/com/eye/PatientCare/EyeConditions/Keratitis.shtml Webmd, Ultraviolet Keratitis, Retrieved July 7, 2010, http://emedicine.medscape.com/article/799025-overview Cassin, Barbara, Dictionary of eye terminology, 5th ed.(2006). Triad pub. Gainesville, FL. Prepared by Vicki Herrin
