Ptosis

Definition: Ptosis is a drooping of the eyelid.  Usually this term describes the upper lid drooping down, but occasionally it is used for a lower lid that rides up too high. If the condition becomes severe, blocks vision or becomes unappealing, laser and surgical treatment may be pursued.

Cause: Ptosis is usually caused by age-related laxity of the lid tissues.  However, other causes, such as trauma, paralysis of the lid nerves from a neurological disorder and/or lid manipulation, such as contact lens wear, can cause the eyelid to droop.  Rarely, ptosis can be congenital, occurring due to a developmental abnormality.

Symptoms: In ptosis, the eyelid droops. The drooping may be mild, causing only cosmetic deformity, or may be so severe that the lid covers the eye, causing decreased vision.

Treatment: Ptosis can be repaired with a minor surgical procedure.

Prognosis: Depending on the underlying cause, ptosis may improve or worsen with time.  Surgery can improve this condition if it worsens.