Patients with dry eyes, tearing and blurring may be due to keratitis, dry eyes, conjunctivitis and other causes, the specific causes need to go to the hospital to determine the examination. 1. Keratitis: Keratitis is usually caused by long-term contact lens wear, corneal abrasion, corneal foreign body, etc. Typical symptoms of patients are eye irritation symptoms, mainly blepharospasm, eye pain, tearing, photophobia, etc., and can be accompanied by varying degrees of visual acuity, blurred vision and other discomforts. 2. Dry eye: dry eye is usually caused by insufficient tear secretion or excessive evaporation, abnormal tear composition and other factors, the patient’s eyes usually appear dryness, foreign body sensation, fatigue and other symptoms, some patients will also appear eye redness, photophobia, acidity and distension, and accompanied by transient vision blurring, which can be improved after blinking. 3. Conjunctivitis: Conjunctivitis is mostly caused by microbial infections, lack of attention to personal hygiene, late at night and other reasons, patients often appear conjunctival congestion, itchy eyes, dryness, pain and other uncomfortable symptoms, the patient’s conjunctiva will also be congested, secretion increase and other symptoms. Patients with dry, watery and blurry eyes are advised to seek prompt medical attention to assess their condition and follow the doctor’s instructions for treatment.