(Droopy Upper Eyelid)
Ptosis is usually caused by stretching or thinning of the tendon between the muscle that raises the eyelid and the eyelid itself. With stretching or thinning, the muscle that normally raises the eylid has to work harder to lift it. This leads to symptoms of eyelid and forehead muscle fatigue and eyelid heaviness. Other, less common causes of ptosis are nerve or muscle damage from any cause, various types of eyelid surgery, infection, muscle weakness, and systemic diseases such as stroke and tumors behind the eye, myasthenia, hypertension, thyroid disorders and diabetes. Children can be born with congenital ptosis; the muscle is abnormally stiff and does not function well. This condition usually lasts until it is surgically corrected.
How is Ptosis corrected?
To correct ptosis, the surgeon needs to make an incision or cut the skin of the upper eyelid in order to reach the muscles and tendons. The surgeon chooses where to make the incision based upon what treatment the eyelid needs. With the front or anterior approach, the surgeon makes an incision in the skin in the upper eyelid crease or fold in order to reach the muscle and tendon; if there is no eyelid fold, one can be created when the incision is made.