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Ptosis (pronounced “tō-sis”) 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 have difficulty keeping their eyelids open. To
compensate, they will often arch their eyebrows in an effort to
raise the drooping eyelids. In severe cases, people with ptosis
may need to lift their eyelids with their fingers in order to
see.
What Causes Ptosis?
There are many causes of ptosis including muscular or neurologic
disease, trauma, or simply the natural aging process. As we age,
the tendon that attaches the levator muscle to the eyelid could
stretch and cause the eyelid to fall. The levator muscle is the
major muscle responsible for elevating the upper eyelid. Ptosis
may also occur following routine lasik or cataract surgery.
Can ptosis be corrected?
Ptosis can be corrected surgically and usually involves
tightening the levator muscle to elevate the eyelid. In severe
ptosis, when the levator muscle is extremely weak, a “sling”
operation may be performed, enabling the forehead muscles to
elevate the eyelid(s). The goal is to elevate the eyelid to
permit a full field of vision and to achieve symmetry with the
opposite upper eyelid.
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