The treatment is surgery. It usually involves one of the following procedures. Strengthening the eyelid lifting muscle, the levator, or a mechanical lifting up of the eyelid with the help of a thread like material called sling. Levator surgery is done in cases of mild or moderate ptosis and sling surgery is done in cases of severe ptosis. The levator muscle is strengthened by surgery so as to allow it to lift the eyelid normally. The surgery for ptosis is quite safe and effective.
The aim of the surgery is to have equal lid height in both the eyes. However, under-correction or over-correction may occur occasionally and this can be rectified. During the initial postoperative period the person may not be able to close the eye completely, but this gets rectified in few weeks. In addition, when the patient looks down, the white of the eye (sclera) becomes visible above the cornea (the central round dark part of the eye). The patient has to learn to move his head rather than his eye downward to avoid this.
Source : Dr. Usha Kim, Chief – Orbit & Oculoplasty Services, Aravind Eye Hospital, Madurai.