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Related to spastic entropion: spastic ectropion
entropion that arises from excessive contracture of the orbicularis oculi muscle.
entropion that arises from excessive contracture of the orbicularis oculi muscle. See also entropion.
An inversion resulting from a spasm of the orbicularis oculi muscles.
See also: entropion
inversion, or the turning inward, as of the margin of an eyelid. Causes irritation, blepharospasm, keratitis. May be congenital or acquired.
see conformational entropion (below).
caused by scarring of the eyelid or conjunctiva following injury or inflammation.
a conformational feature of some dog breeds, including Shar peis, Chow Chows, and St. Bernards, which either have excessive and thick skin on the face, or deeply set eyes. Called also anatomic entropion.
occurs in older dogs because of temporal muscle atrophy, loss of retrobulbar tissue or general debilitation.
inherited congenital entropion
occurs in sheep, cattle, miniature pigs and some breeds of dogs.
affects the lateral part of the eyelids. Involvement of both upper and lower eyelids may be caused by inadequate function of the retractor anguli oculi muscle.
seen most often in brachycephalic dogs.
seen in Shar pei puppies, because of their thick skin and enophthalmos. Temporary surgical correction is required at an early age. Newborn lambs, calves and goats may also be affected.
due to spasticity of the orbicularis oculi muscle caused by painful conditions of the eye, such as ulcerative keratitis, distichiasis or foreign bodies.
uveal entropion, entropion uveae
infolding of the pupillary border and adherence to the anterior surface of the iris.