Burning and pain in the eyes can be caused by overuse of the eyes, blepharitis and conjunctivitis. 1. Excessive eye use: If the patient simply has burning and pain in the eyes, and is not accompanied by other uncomfortable symptoms, it may be due to visual fatigue caused by excessive use of the eyes, and the patient can usually get significant improvement by resting with the eyes closed appropriately. 2. Blepharitis: Blepharitis is an acute purulent inflammation of the eyelids caused by bacterial invasion of the eyelid glands, resulting in redness, swelling, pain and burning of the eyelids. 3. Conjunctivitis: Conjunctivitis patients in the inflammation stimulation, patients may appear eye burning, pain and other symptoms, accompanied by conjunctival congestion, eye secretion increase and other symptoms. It is recommended that patients with severe burning and pain in the eyes consult a doctor to evaluate their condition and follow the doctor’s instructions for treatment.