Ectropion uveae

From Cat
A 15-year-old DSH with ectropion uveae and uveal cysts at the pupillary margin. There is also senile nuclear sclerosis

Ectropion uveae is a relatively uncommon disease of the iris.

It represents eversion of the posterior pigment epithelium of the iris[1], but may also be congenital in origin. It is caused by either shrinkage of the anterior surface of the iris or hyperplasia of the posterior pigment epithelium. It can occur in association with iris inflammation.

Ectropion uveae are an incidental finding on clinical examination and do not normally require medical intervention.


  1. Barnett, KC & Crispin, SM (2002) Feline ophthalmology:An atlas and text. Saunders, USA