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Red eye is the most common sign of ocular inflammation. Serious cases of red eye need diagnosis and proper treatment by ophthalmologist but many other from of red eye can be managed primarily by health care personals. If General practioners were able to diagnose and differentiate the causes of red eye the serious complication have not been observed and the patients were have been treated on due time. Some of the causes of red eye are: blepharitis, corneal erosion, sub conjunctival hemorrhage, glaucoma, episcleritis and scleritis.