what is ptosis
Ptosis (pronounced âtoe-sisâ) is the medical term for drooping of the upper eyelid(s). This lowering of the upper eyelid margin may cause a reduction in the field of vision when the eyelid either partially or completely obstructs the pupil.Patients with ptosis often have20difficulty keeping their eyelids open.here are many causes of ptosis including age related weakening of the muscle, congenital weakness, trauma, or sometimes neurologic disease. As we age, the tendon that attaches the levator muscle, the major muscle that lifts the eyelid can stretch and cause the eyelid to fall.