Peer-reviewed veterinary case report
Eye problems in the other eye of Shih-Tzus with one detached retina
By Itoh, Yoshiki et al.·Published in Veterinary ophthalmology·2010·Department of Small Animal Clinical Sciences, Japan·View original on PubMed →
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Original publication title: Investigation of fellow eye of unilateral retinal detachment in Shih-Tzu.
Plain-English summary
A 6-year-old Shih Tzu was diagnosed with retinal detachment in one eye, and during follow-up, the vet examined the other eye for potential issues. The tests revealed that many of these dogs had cataracts and changes in the retina, which could lead to further problems. In fact, some of the dogs developed retinal detachment in the other eye over time. This suggests that Shih Tzus with retinal detachment in one eye may also have underlying issues in the other eye that could require monitoring and treatment.
People also search for: Shih Tzu eye problems · retinal detachment in dogs · cataracts in dogs treatment
Abstract
OBJECTIVE: To investigate disease in the fellow eye, and consider the relation to rhegmatogenous retinal detachment (RRD) in Shih-Tzus. ANIMALS STUDIED: The fellow eyes of 49 Shih-Tzus (27 male, 22 female; median age: 6.8 years) with unilateral RRD diagnosed by funduscopy or ultrasonography at Rakuno Gakuen University Teaching Animal Hospital were assessed in this study. PROCEDURES: Ophthalmic examinations (including menace response, pupillary light reflex, slit-lamp biomicroscopy, and funduscopy) were performed in the subjects. Electroretinography was performed in 12 eyes that developed retinal degeneration. Maximum follow-up period was 42 months. RESULTS: Cataracts and vitreous opacity were observed in 26 (53%) and 32 eyes (65%), respectively, by slit-lamp biomicroscopy. Retinal degeneration with various degrees of hyper-reflectivity of the tapetal fundus and/or attenuation of retinal vessels was observed in 35 eyes (71%) on funduscopy. A reduction of amplitude in rod, standard combined and 30 Hz flicker electroretinogram was detected in 5 (42%), 10 (83%), and 6 eyes (50%), respectively. During the follow-up period, RRD was detected in six eyes. CONCLUSION: Retinal degeneration was frequently detected by funduscopy and electroretinograms in the fellow eye in Shih-Tzus with RRD. In our subjects, vitreous degeneration was also observed frequently. It has been reported that peripheral retinal degeneration is one of the causes of RRD associated with vitreous degeneration in humans. We assume that primary retinal degeneration with secondary vitreous degeneration is one of the causes of RRD in Shih-Tzus.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/20840105/