The patient’s eyes are painful and itchy, which may be caused by acute conjunctivitis, dry eye, blepharitis, etc. The patient’s eyes may be painful and itchy, which is usually caused by bacterial or viral infection. 1. Acute conjunctivitis: patients with eye pain and itching may be acute conjunctivitis caused by acute conjunctivitis, acute conjunctivitis is usually bacterial or viral infection caused by acute infectious eye disease, manifested as eye itching, edema, pain, congestion, tearing, and increased secretion and other symptoms of discomfort. 2. Dry eye: patients with sore and itchy eyes may be caused by dry eye, mostly occurring in the elderly, computer users and contact lens wearers, the patient’s common symptoms include dry eyes, itchy eyes, a foreign body sensation, burning sensation, thick secretions, congestion, sticky filamentous secretions, and so on. 3. Blepharitis: patients with painful and itchy eyes may be caused by blepharitis, patients may experience burning sensation in the eyes, itching, tingling, increased secretion, eyelid margin congestion, swelling, vesicles and other uncomfortable symptoms. If the treatment is not timely, it may be complicated by conjunctivitis, bald eyelashes, eyelid margin hypertrophy and other hazards. 4. Other: In addition, eye allergy patients, such as allergic conjunctivitis, patients can also appear in the eyes itching and other discomfort symptoms, can also be accompanied by eye swelling and other discomfort symptoms. It is recommended that patients with painful and itchy eyes consult a doctor in a timely manner to assess the condition and follow the doctor’s instructions in the treatment.