Ptosis is usually not self-correctable. Ptosis can be caused by congenital ocular dysplasia, ocular surgical trauma, drug allergies, etc. Patients can be treated with medication or surgery. 1. Congenital dysplasia: Inadequate muscle strength of the levator muscle due to congenital dysplasia causes loss of muscle function resulting in ptosis, which needs to be improved by levator muscle shortening surgery to prevent vision loss and improve appearance. 2. Eye surgery trauma: If the levator muscle is damaged during surgery, it is easy to cause ptosis. Patients can use levator muscle shortening surgery to help restore the normal height of the eyelid fissure, better expose the pupil to prevent amblyopia, and correct the shape of the eyelid. 3. Drug allergy: If the patient’s eyes are allergic to drugs, it will cause eyelid edema, which will lead to ptosis. The patient can follow the doctor’s instructions to use anti-allergy drugs such as loratadine to relieve the swelling of the eyelids. It is recommended that patients with ptosis consult a doctor in time to assess their condition and follow the doctor’s instructions for treatment.