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Comparative morphology of epicorneal conjunctival membranes in rabbits and human pterygium
Author(s) -
Roze Maurice,
Ridings Bernard,
Lagadic Marie
Publication year - 2001
Publication title -
veterinary ophthalmology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.594
H-Index - 50
eISSN - 1463-5224
pISSN - 1463-5216
DOI - 10.1046/j.1463-5216.2001.00145.x
Subject(s) - pterygium , morphology (biology) , pathology , conjunctiva , membrane , anatomy , ophthalmology , medicine , biology , zoology , biochemistry
A rarely described ocular lesion in the rabbit is presented following the observation of four cases. It is a membrane of conjunctival origin that advances progressively, without adhering, towards the center of the cornea. Clinically the lesion in rabbits looks like pterygium in man, but with several differences: in rabbits, the conjunctival fold is absolutely free and does not penetrate into the superficial corneal layers. It originates from all the limbal circumference in a symetric growth. The cornea itself remains unaltered. The fold consists of fibroblasts and collagen. The microscopic findings suggest the lesion is possibly of a collagenous dysplasia.