Redness and swelling of the eye even after the corneal abrasion is healed is considered to be suffering from keratitis. Corneal abrasions may cause bacteria, viruses, fungi and echinococcus amebae to infect the cornea and cause inflammation, which is also known as keratitis, and keratitis will lead to redness and swelling of the eyes. The principle of treatment for keratitis is to control the infection and reduce the inflammatory reaction, which requires topical application of anti-infective drugs as prescribed by the doctor. Keratitis is a kind of inflammatory reaction caused by the weakening of corneal defense ability, external pathogens or their own diseases and other factors attacking the corneal tissue. It is recommended that when the patient’s eyes have the phenomenon of redness and swelling, they should go to the hospital, to clarify the cause of the disease, under the guidance of the doctor for treatment, and pay attention to maintain eye hygiene in daily life, do not overuse of the eyes.