What is eyelid incompetence?

summary

Incomplete eyelid closure refers to the upper and lower eyelids can not be completely closed, resulting in partial eye exposure, also known as rabbit eyes. The most common cause of eyelid incompetence is facial paralysis, followed by cicatricial ectropion. In addition, the ratio of orbital volume to eyeball size is out of balance. What is eyelid incompetence? Let's talk about it

What is eyelid incompetence?

Due to the reflex upward rotation of the eyeball (bell phenomenon) when the eyes are closed, only the lower bulbar conjunctiva is exposed, causing conjunctival congestion, dryness, hypertrophy and hyperkeratosis. The most common reason for facial paralysis, eyelid orbicularis muscle paralysis, so that the lower eyelid sagging.

Because the cornea is exposed, the surface is dry without tears, which leads to exposure keratitis and corneal ulcer. And the eyelids of most patients can't be close to the eyeball, and the lacrimal point can't be in close contact with the lacrimal lake, resulting in lacrimal overflow.

Temporary functional eyelid insufficiency may occur during general anesthesia or severe coma. A few normal people sleep, eyelid crack also has a gap, but the cornea will not be exposed, known as physiological rabbit eyes.

matters needing attention

According to the causes of treatment. Acupuncture may be effective for some patients with facial paralysis. Cicatricial ectropion should be corrected by operation. In order to reduce tissue edema and prevent exophthalmos, emergency radiotherapy for pituitary and orbital tissue should be considered; Otherwise, orbital decompression can be considered.