Keratitis patients usually need to pay attention to rest, do not overuse the eyes, avoid touching and contamination of the cornea and so on. At the same time, follow the doctor’s instructions to standardize the treatment. Keratitis is an inflammation of the cornea caused by various endogenous or exogenous factors. In addition to timely medical standardized diagnosis and treatment, need to pay attention to rest, do not overuse the eyes; maintain eye hygiene, do not mess with the use of drugs, pay attention to safety, avoid eye injuries, keep your hands clean, avoid touching and contamination of the cornea, if necessary, wear goggles; moderate exercise, balanced nutrition. Factors that may cause or aggravate keratitis include long-term contact lens wear, corneal abrasion, corneal foreign body, contact with pathogen-contaminated water or medication, immunocompromised, warm and humid environment, etc., and care should be taken to avoid the above factors. Inadequate treatment of keratitis may result in corneal ulcers, perforation, etc., which may seriously affect vision. For symptoms such as eye pain, photophobia, tearing, etc., it is necessary to consult a doctor in a timely manner.