The itchy inner side of the patient’s eyes may be caused by factors such as impingement, dry eye, eye allergy, eye infection and so on. 1. Inverted eyelashes: If the patient has inverted eyelashes, due to the growth of eyelashes in the direction of the eyeball, it will form an irritation to the eye surface tissues, causing the patient’s itchy inner eyes, which can also be accompanied by foreign body sensation, tearing and other discomfort symptoms. 2. Dry eye: when the patient has dry eye, because of insufficient tear secretion or tear evaporation is too fast, the tear film stability decreases, the patient can appear in the eyes of the inner itchy performance, but also can be accompanied by dryness, photophobia and other uncomfortable symptoms. 3. Eye allergy: If the eyes of allergic patients are exposed to allergens, such as pollen, dust, etc., it may lead to eye allergy, inducing allergic conjunctivitis, itchy eyes, accompanied by tearing, burning sensation and other symptoms. 4. Eye infections: If the patient does not pay attention to eye hygiene in daily life, often use dirty hands to rub the eyes, may lead to eye infections, such as infectious keratitis, etc., in the inflammation stimulation, there may be itching of the inner side of the eye, conjunctival congestion, tearing and other uncomfortable symptoms. It is recommended that patients with obvious itchy inner eyes consult a hospital in time to assess their condition and follow the doctor’s instructions for treatment.