The patient’s photophobia and blurred vision may be related to conjunctivitis, keratitis and dry eye. 1. Conjunctivitis: the conjunctiva is in contact with various microorganisms and the external environment, when the defense ability of the conjunctiva is weakened, or the external pathogenic factors are enhanced, it will trigger inflammation of the conjunctival tissues, which is usually divided into infectious conjunctivitis and allergic conjunctivitis, the patient can be manifested as conjunctival congestion, secretion increase, the eyes feel a sense of foreign body obvious, itchy, photophobia, tearing, blurred vision, and so on. 2. Keratitis: Keratitis is an inflammatory lesion triggered by the invasion of pathogenic microorganisms into the cornea, which is often characterized by eye pain, photophobia, tearing, blurred vision and other discomforts. 3. Dry eye: dry eye is due to the tear film instability and ocular surface damage caused by abnormalities in the quantity or quality of tears, patients may experience eye dryness, foreign body sensation, photophobia, tearing, burning sensation and blurred vision and other discomforts. It is recommended that patients with photophobia and blurred vision should consult a doctor in time to assess their condition and standardize treatment under the guidance of a medical professional.