Patients with itchy eyes may be caused by blepharitis, atopic dermatitis and conjunctivitis. 1. Blepharitis: Blepharitis, also known as eyelid margin inflammation, is a subacute or chronic inflammation of the surface of the eyelid margin, eyelash follicles and their glandular tissues. Patients may suffer from itching, tingling and burning sensation of the eyelid and orbital area, and some patients may also suffer from congestion and swelling of the eyelid margins and skin. 2. Allergic dermatitis: Allergic dermatitis is a skin allergic reaction caused by allergic substances, mainly manifested as erythema, papules, pustules, cracks and other skin lesions, accompanied by itching, etc. Therefore, patients with itchy skin around the eye socket may be caused by allergic dermatitis. 3. Conjunctivitis: Conjunctivitis is an inflammatory disease that occurs in the conjunctiva, mostly caused by microbial infections, external stimuli, mainly manifested as foreign body sensation in the eye, burning sensation, increased secretion and other discomforts, and some patients may have the symptom of orbital itching. It is recommended that patients seek timely medical examination to clarify the cause of the disease and then carry out targeted treatment, pay attention to eye care in life, avoid rubbing the eyes with hands, and pay attention to monitoring the condition and regular review.