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Related to lagophthalmos: nocturnal lagophthalmos
inability to shut the eyes completely.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
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]
Farlex Partner Medical Dictionary © Farlex 2012
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.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
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.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann