Keratitis presents with symptoms of photophobia and generally recovers about two weeks after treatment. Keratitis is a common ophthalmic disease caused by neglect of eye hygiene or external eye injuries, leading to infection in the sclera of the eye. The main symptoms include conjunctival congestion, redness, pain, foreign body sensation, photophobia, tearing, and decreased vision. It is necessary to promptly treat with antibiotic eye drops to eliminate the infection and alleviate the symptoms mentioned. Commonly used medications include levofloxacin hydrochloride eye drops, tobramycin eye drops, and moxifloxacin eye drops. During the treatment period, patients must pay attention to eye hygiene and avoid dirty water entering the eyes to prevent worsening of the infection.