Abstract Brachycephalic breeds, including Shih Tzus, are predisposed to developing ophthalmic conditions due to facial conformation. This study investigated the primary ophthalmic diseases in Shih Tzus treated at the Governador Laudo Natel’s Veterinary Hospital of São Paulo State University Júlio de Mesquita Filho, Jaboticabal-São Paulo, Brazil, between 2014 and 2022. We selected 574 cases, totaling 1,724 diagnoses. Regarding sex, 50% (287/574) were female, and 50% (287/574) were male. Anatomically, diagnoses in group 1 (lacrimal system, eyelids, and adnexa) were the most common, comprising 55% (945/1,724), followed by group 2 (anterior segment) at 40% (683/1,724), group 4 (eyeball) at 4% (73/1,724), and group 3 (posterior segment) at 1% (23/1,724). The mean age at diagnosis was 5.2 years. Adult dogs were the most represented age group at 55% (317/574), followed by young dogs at 25% (145/574) and elderly dogs at 20% (112/574). Elderly dogs had more diagnoses of glaucoma and cataracts compared to young and adult dogs. In young dogs, the most diagnosed conditions were ulcerative keratitis and distichiasis, while in adults and elderly dogs, the predominant conditions were keratoconjunctivitis sicca and ulcerative keratitis. breeds conformation Natels Natel s Filho JaboticabalSão Jaboticabal Brazil 201 2022 57 cases 1724 724 1,72 sex 50 287/574 287574 287 (287/574 female male Anatomically lacrimal system eyelids adnexa common 55 945/1,724, 9451724 945/1,724 , 945 (945/1,724) anterior segment 40 683/1,724, 6831724 683/1,724 683 (683/1,724) eyeball (eyeball 73/1,724, 731724 73/1,724 73 (73/1,724) posterior 23/1,724. 231724 23/1,724 . 23 (23/1,724) 52 5 5. years 317/574, 317574 317/574 317 (317/574) 25 145/574 145574 145 (145/574 20 112/574. 112574 112/574 112 (112/574) distichiasis 202 172 72 1,7 287/57 28757 28 (287/57 945172 945/1,72 94 (945/1,724 683172 683/1,72 68 (683/1,724 73172 73/1,72 7 (73/1,724 23172 23/1,72 (23/1,724 31757 317/57 31 (317/574 145/57 14557 14 (145/57 11257 112/57 11 (112/574 17 1, 287/5 2875 (287/5 94517 945/1,7 9 (945/1,72 68317 683/1,7 6 (683/1,72 7317 73/1,7 (73/1,72 2317 23/1,7 (23/1,72 3175 317/5 (317/57 145/5 1455 (145/5 1125 112/5 (112/57 287/ (287/ 9451 945/1, (945/1,7 6831 683/1, (683/1,7 731 73/1, (73/1,7 231 23/1, (23/1,7 317/ (317/5 145/ (145/ 112/ (112/5 (287 945/1 (945/1, 683/1 (683/1, 73/1 (73/1, 23/1 (23/1, (317/ (145 (112/ (28 945/ (945/1 683/ (683/1 73/ (73/1 23/ (23/1 (317 (14 (112 (2 (945/ (683/ (73/ (23/ (31 (1 (11 ( (945 (683 (73 (23 (3 (94 (68 (7 (9 (6
Resumo Os cães das raças braquicefálicas incluindo os Shih tzu, são predispostos ao desenvolvimento de afecções oftálmicas em razão da sua conformação facial. O objetivo principal do presente trabalho foi investigar as principais oftalmopatias em cães da raça Shih tzu atendidos no Hospital Veterinário “Governador Laudo Natel” da Universidade Estadual Paulista Júlio de Mesquita Filho, Jaboticabal-São Paulo, Brasil, entre os anos de 2014 e 2022. Foram selecionadas 574 fichas totalizando 1724 diagnósticos. Em relação sexo 50% (287/574) eram fêmeas e 50% (287/574) eram machos. Em relação à classificação anatômica os diagnósticos do grupo 1 (sistema lacrimal, pálpebras e anexos) foram os mais expressivos com 55% (945/1724), seguido do grupo 2 (segmento anterior) com 40% (683/1724), grupo 4 (bulbo ocular) com 4% (73/1724) e grupo 3 (segmento posterior) com 1% (23/1724). A idade média do diagnóstico foi de 5,2 anos, sendo que os cães adultos foram os mais representativos com 55% (317/574), seguido dos jovens 25% (145/574) e dos idosos com 20% (112/574). Os cães idosos obtiveram mais diagnósticos de glaucoma e de catarata quando comparados aos animais jovens e adultos. Em cães jovens as afecções mais diagnosticadas foram as ceratites ulcerativas e distiquíase, enquanto nos adultos e nos idosos foram ceratoconjuntivite seca e ceratite ulcerativa. facial Governador Natel Filho JaboticabalSão Jaboticabal São Paulo Brasil 201 2022 57 172 50 287/574 287574 287 (287/574 machos sistema lacrimal anexos 55 945/1724, 9451724 945/1724 , 945 (945/1724) segmento anterior 40 683/1724, 6831724 683/1724 683 (683/1724) bulbo ocular 73/1724 731724 73 (73/1724 posterior 23/1724. 231724 23/1724 . 23 (23/1724) 52 5 5, 317/574, 317574 317/574 317 (317/574) 25 145/574 145574 145 (145/574 20 112/574. 112574 112/574 112 (112/574) distiquíase ulcerativa 202 17 287/57 28757 28 (287/57 945172 945/172 94 (945/1724 683172 683/172 68 (683/1724 73/172 73172 7 (73/172 23172 23/172 (23/1724 31757 317/57 31 (317/574 145/57 14557 14 (145/57 11257 112/57 11 (112/574 287/5 2875 (287/5 94517 945/17 9 (945/172 68317 683/17 6 (683/172 73/17 7317 (73/17 2317 23/17 (23/172 3175 317/5 (317/57 145/5 1455 (145/5 1125 112/5 (112/57 287/ (287/ 9451 945/1 (945/17 6831 683/1 (683/17 73/1 731 (73/1 231 23/1 (23/17 317/ (317/5 145/ (145/ 112/ (112/5 (287 945/ (945/1 683/ (683/1 73/ (73/ 23/ (23/1 (317/ (145 (112/ (28 (945/ (683/ (73 (23/ (317 (14 (112 (2 (945 (683 (7 (23 (31 (1 (11 ( (94 (68 (3 (9 (6