The Canadian veterinary journal = La revue veterinaire canadienne · 2026
Incidence of and treatment strategies for giant retinal tears in cats with retinal detachment.
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Grozdanic Sinisa D, Luzhetskii Sergei, Lazic Tatjana
Аннотация
OBJECTIVE: Our objectives were to describe the incidence and possible etiology of giant retinal tears (GRT) in cats with retinal detachment, and to evaluate visual outcomes following medical or surgical (retinal reattachment) therapy.
ANIMALS: We conducted a retrospective analysis. Records from 99 cats with a diagnosis of retinal detachment were analyzed. A total of 16 cats were diagnosed with GRT.
PROCEDURE: All cats underwent complete ophthalmic examinations in addition to complete systemic examinations. Three GRT cats were treated with vitreoretinal reattachment surgery with silicone oil tamponade, 1 cat underwent enucleation, and the remaining 12 cats were treated with medical therapy only. The Fisher exact test was used to calculate risk odds ratio.
RESULTS: Individual cats experienced multiple pathologies. The most common ocular pathology in cats with GRT was hypertensive retinopathy (8/16), followed by vitreal degeneration (4/8), traumatic GRT (4/8), cataract (3/16), and anterior uveitis/vitritis (3/16). Based on risk/odds ratio, trauma (P < 0.001), vitreal degeneration (P = 0.01), and male sex (P = 0.025) were factors associated with GRT development. Vitreoretinal surgery with silicone tamponade restored normal anatomic position vision in all operated eyes (3/3; median follow-up time: 565 d). The most common postoperative complication was glaucoma/ocular hypertension, which developed in 2/3 operated cats.
CONCLUSION AND CLINICAL RELEVANCE: Vitreal degeneration and trauma were significant risk factors for development of GRT in cats. Vitreoretinal surgery with silicone tamponade was an effective treatment for vision restoration in cats with GRT.
ANIMALS: We conducted a retrospective analysis. Records from 99 cats with a diagnosis of retinal detachment were analyzed. A total of 16 cats were diagnosed with GRT.
PROCEDURE: All cats underwent complete ophthalmic examinations in addition to complete systemic examinations. Three GRT cats were treated with vitreoretinal reattachment surgery with silicone oil tamponade, 1 cat underwent enucleation, and the remaining 12 cats were treated with medical therapy only. The Fisher exact test was used to calculate risk odds ratio.
RESULTS: Individual cats experienced multiple pathologies. The most common ocular pathology in cats with GRT was hypertensive retinopathy (8/16), followed by vitreal degeneration (4/8), traumatic GRT (4/8), cataract (3/16), and anterior uveitis/vitritis (3/16). Based on risk/odds ratio, trauma (P < 0.001), vitreal degeneration (P = 0.01), and male sex (P = 0.025) were factors associated with GRT development. Vitreoretinal surgery with silicone tamponade restored normal anatomic position vision in all operated eyes (3/3; median follow-up time: 565 d). The most common postoperative complication was glaucoma/ocular hypertension, which developed in 2/3 operated cats.
CONCLUSION AND CLINICAL RELEVANCE: Vitreal degeneration and trauma were significant risk factors for development of GRT in cats. Vitreoretinal surgery with silicone tamponade was an effective treatment for vision restoration in cats with GRT.