Dry, itchy, photophobic eyes are usually due to dry eye with allergic conjunctivitis. Dry eye: can be seen due to a variety of causes, such as insufficient tear secretion, a dry environment, overuse of the eyes, diabetes, and other underlying diseases, can lead to. It often manifests as dry eyes, itchiness, photophobia and other symptoms. Allergic conjunctivitis: the disease has a certain genetic predisposition, when the conjunctiva is exposed to the outside world, contact with allergens will cause allergic reactions. It can manifest as dry eyes, itchiness, photophobia, redness of the eyeballs, foreign body sensation and other symptoms. Dry eye and allergic conjunctivitis may appear in combination and affect each other with gradual aggravation. Patients can go to the ophthalmology department of the hospital to confirm the diagnosis and standardize the treatment by doing tear secretion test examination, tear film rupture time examination, slit-lamp microscopy, and conjunctival impression cytology.