Dry and itchy eyes may be caused by dry eye, allergic reaction and visual fatigue. 1. Dry eye: as a common cause, dry eye will appear dry eyes, and accompanied by symptoms of itchy eyes, due to blepharoplakic gland dysfunction caused by the symptoms of dry eye is more obvious, you can use artificial tears, to play a role in stabilizing the tear film, serious cases can be used to cyclosporine and other drugs treatment. 2. Allergic reaction: If in spring and fall, when allergy season is high, there are obvious itchy symptoms in the eyes, accompanied by dryness and redness, etc., it is considered as allergic eyelid inflammation or allergic conjunctivitis, etc., and can be treated with cyclosporine A, tacrolimus and other drugs for topical eye spotting. 3. Visual fatigue: prolonged, close-distance eye or long time use of electronic products, as well as stay up late will cause visual fatigue, resulting in dry eyes, astringent, itchy and other symptoms. Need to pay attention to rest, local hot compresses, can follow the doctor’s instructions with seven leaves of digitalis biside eye drops or sodium vitrate eye drops and other drugs to relieve visual fatigue. Patients with dry and itchy eyes are recommended to go to the hospital in time for consultation, after clarifying the cause of the disease, under the guidance of the doctor for reasonable medication and standardized treatment.