Congenital aniridia in a pony.
D000818:Animals; D002386:Cataract / Q000151:congenital / Q000209:etiology / Q000235:genetics / Q000662:veterinary*; D005260:Female; D006734:Horse Diseases / Q000151:congenital* / Q000209:etiology / Q000235:genetics; D006736:Horses; D007498:Iris / Q000002:abnormalities*