lagophthalmos(redirected from Lagophthalmus)
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inability to shut the eyes completely.
A condition in which a complete closure of the eyelids over the eyeball is difficult or impossible.
Synonym(s): hare's eye
[G. lagōs, hare + ophthalmos, eye]
lagophthalmos/lag·oph·thal·mos/ (lag″of-thal´mos) inability to shut the eyes completely.
Etymology: Gk, lagos, hare, ophthalmos, eye
an abnormal condition in which an eye may not be fully closed because of a neurological, muscular, or mechanical disorder.
lagophthalmosThe condition in which the eyelids are unable to close, usually because of forward protrusion or enlargement of the eyeball, as in dysthyroid eye disease (Graves' ophthalmopathy) or tumour in the ORBIT. From the Greek lagos , a hare.
Failure of the upper eyelid to close the eye completely. During sleep, about one-third of the population has a slight lagophthalmos. See ectropion; exposure keratopathy.
incomplete or defective closure of the eyelids.
may occur as a result of facial neuropathy or hypothyroidism.
see exposure keratitis.