Equine eye worm: a review of 50 cases

Equine ocular setariosis is an important cause of corneal opacity caused by Setaria spp. and displays signs of lacrimation, photophobia, corneal opacity, conjunctivitis and loss of vision. In this study, 80 horses with varying ocular abnormalities were subjected to detailed ophthalmic examination. In eyes with complete corneal opacity (n=5), B-mode ultrasonography was performed to visualize the anterior chamber and other intraocular structures. Fifty three eyes of 50 horses were diagnosed for the presence of Setarial worm and subjected to surgical removal by clear corneal stab incision.