Ptosis is a congenital weakness of the upper eyelid, which is an eye condition that exists from birth that makes it difficult to open the eyes. Patients with ptosis have difficulty lifting the upper eyelid, so they can’t even open their eyes very well, which is known as squinting. Since most ptosis patients are children, it affects their physical and psychological development. However, ptosis can be corrected with ptosis correction surgery. There are two ways to correct ptosis: the first is to shorten or shorten the levator muscle and move the stopping edge of the muscle forward, and then enhance the function of the levator muscle; the second is to strengthen or replace the levator muscle with the help of neighboring muscles or implants, for example, using the frontalis muscle and the upper rectus muscle to raise the position of the eyelid margin, etc. The second is to strengthen or replace the levator muscle with the help of neighboring muscles or implants. The purpose of ptosis correction surgery is to raise the drooping upper eyelid, restore normal lid height, expose the pupil, expand the field of vision, prevent amblyopia, correct abnormal morphology, and improve facial appearance. In short, both functional restoration and cosmetic purposes should be achieved. For congenital ptosis, surgery can be taken to correct the ptosis, and the result is good. Acquired ones should be treated for different causative causes, such as myotonic dystrophy, total ocular muscle paralysis, or cases of diplopia after lid lifting, which are not suitable for surgical correction, and myasthenia gravis sex is generally not through surgery. If confined to the eyelid, Hsiang treatment effect is not satisfactory or unacceptable when the wind to consider surgical correction. Early treatment is better for ptosis patients. Ptosis treatment time: generally 2-5 years of age after surgery is appropriate, severe ptosis can be early in the age of about 1 year surgery; to ensure the safety of the operation and the effect is ideal, must carefully choose plastic surgery hospital.