Affiliation: | 1. Veterinary Medicine Department, Comparative Ophthalmology Laboratory, Curtiba, Brazil;2. Universidade Federal do Parana, Curtiba, Brazil;3. Ophthalmology Service, Centro Integrado de Especialidades Veterinárias, Curtiba, Brazil;4. Small Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA |