The Cryosurgical Treatment of Pigmentary Keratitis in Dogs An Experimental and Clinical Study |
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| Authors: | D L HOLMBERG dvm mvsc Diplomateacvs H B SCHEIFER dvm PhD J PARENT dvm mvsc Diplomateacvim |
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| Institution: | Veterinary Teaching Hospital Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.;Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada. |
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| Abstract: | Forty normal dogs were exposed to double freezes of a 1 cm diameter area of their central corneas using a liquid nitrogen spray. Postoperative sequelae and final histopathologic results were evaluated. All eyes suffered epithelial damage and developed corneal edema, but dogs followed for 3 weeks returned to a normal or near normal condition. Nine clinical cases of pigmentary keratitis were subsequently treated by cryosurgery. The complications following this technique were similar to those seen in the experimental dogs. Reduction in corneal pigmentation and improvement of vision occurred in all cases. |
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