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Inherited retinal degeneration in a Bengal cat

  • Jeong, Manbok (I Animal Medical Center) ;
  • Narfstrom, Kristina (Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri-Columbia)
  • Received : 2018.07.09
  • Accepted : 2018.08.16
  • Published : 2018.12.31

Abstract

A 2-year-old intact female Bengal cat was presented with a 6-month history of visual impairment. The cat manifested bilateral negative menace responses and dazzle reflexes and sluggish pupillary light reflexes. Bilateral fundus changes included generalized tapetal hyperreflectivity, advanced retinal vascular attenuation, and increased pallor of the optic disc. A diagnosis of bilateral retinal degeneration was made. The clinical findings suggest that the investigated Bengal cat was most likely to have an inherited retinal degeneration. Further studies of the Bengal cat breed are needed to determine the prevalence of inherited retinal degeneration in this breed in Korea.

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Fig. 1. Anterior capsular cataract due to persistent pupillary membranes (iris to lens) seen with diffuse illumination by slitlamp biomicroscopy in the right eye (A, before mydriasis; B, after mydriasis).

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Fig. 2. Posterior capsular cataracts seen with retro-illumination by slit-lamp biomicroscopy in both eyes (A, right eye; B, left eye).

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Fig. 3. Fundus photographs from a 2-year-old Bengal cat with inherited retinal degeneration (A, right eye; B, left eye). There is marked hyperreflectivity and grayish discoloration to the tapetal fundus, and retinal vasculature is severely attenuated.

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