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Vet Ophthalmol. 2009 Jul-Aug;12(4):221-6. doi: 10.1111/j.1463-5224.2009.00705.x.

Feline entropion: a case series of 50 affected animals (2003-2008).

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Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK.



To evaluate the signalment, clinical signs, and etiopathogenesis of entropion in 50 cats.


Signalment and history of 50 cases of entropion in cats presented to a referral ophthalmology clinic. Animals were examined with direct and indirect ophthalmoscopy and slit-lamp biomicroscopy. Animals were treated surgically with a Hotz-Celsus procedure and results of surgery were evaluated between 4 and 22 weeks.


Sixteen cats were young (mean age 4.1 +/- 3.6 years) with pre-existing irritative ocular surface conditions such as conjunctivitis, corneal ulceration or sequestrum. Twenty-six cats were relatively older (mean age 11.3 +/- 2.2 years) with involutional entropion with or without enophthalmos, presumed to result from a reduction in orbital tissue. Five cats were Persians with entropion associated with brachycephalic facial anatomy, whereas three were entire young adult male Maine Coones with in-turning associated with excessive facial 'jowl' tissue. Surgical treatment was curative in the majority of cases after one surgery although an increased amount of eyelid tissue was required to be removed for correction compared with similar surgery in the dog.


This study has shown that entropion in cats may be caused in young animals as a result of continued blepharospasm related to irritative causes such as conjunctivitis or corneal ulceration or in older animals with lid laxity or globe enophthalmos. Lid in-turning was also seen in Persian and Maine Coone breeds.

[Indexed for MEDLINE]

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