This 70 year old lady demonstrates upper lid ptosis in her preoperative picture. This is where the upper lid margin lies lower than the top of the patient’s pupil. The condition occurs increasingly with age and is known as involutional or ‘senile’ ptosis.
It interferes with vision especially when watching TV or reading. You can see that the patient is trying to compensate by elevating her eyebrows. Ptosis correction can be performed at the same time an an aesthetic blepharoplasty as seen here.
Note that the eyebrows are lower postoperatively because they no longer have to compensate for the eyelid ptosis. Note also that the eyes no longer slant downwards. The patient had the lateral corners of her eyelid suspended at a higher level (lateral canthopexy).