Some middle-aged and older people who had large eyes when they were younger are diagnosed clinically with ptosis if their eyelids gradually droop as they age and if they cover the cornea above them by more than 2 mm. This type of ptosis is classified as tenor ptosis. Does it need to be treated? We believe that in ptosis the upper lid may partially or completely obscure the vision, and the patient often uses the strength of the frontal forehead muscles, or looks up to get rid of this disturbance, resulting in an increase in frontal wrinkles, also known as elevation lines, high eyebrows, and even causing deformities in the neck muscles or cervical spine. Therefore, ptosis not only has an impact on visual function, causing patients to experience visual fatigue, but also significantly affects appearance. Therefore, treatment, primarily surgical, is required. Ptosis correction ensures that the normal lid height is restored after surgery and the visual axis is exposed, which means that the pupil is not covered by the eyelid. The most suitable surgical procedure needs to be chosen according to the patient’s muscle strength, etc. For age-related ptosis, the usual options are levator muscle folding and levator muscle shortening.