Document Type

Conference Paper

Date of this Version

1984

Publication Source

Transactions of the American College of Veterinary Ophthalmologists

Volume

15

Start Page

86

Last Page

104

Abstract

Adult dogs occasionally become suddenly, totally and permanently blind. If examined soon after the onset of blindness, the dogs show no ophthalmologic evidence of disease sufficient to account for their problem and are usually in otherwise good health. The hallmark of this sudden, acquired retinal degeneration (SARD), that establishes it as a retinopathy, and distinguishes it from neurological disease, is the extinguished electroretinogram. The syndrome has been termed "Silent Retina Syndrome" and "Metabolic Toxic Retinopathy". Although uncommon, SARD has been diagnosed with increased frequency in recent years. Little retinal tissue has, however, become available for histopathologic characterization of the disease.

This report reviews twenty six cases of SARD examined by the authors at the Veterinary Hospital, University of Pennsylvania (VHUP). The histopathology and ultrastructural morphology of four cases are described.

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Date Posted: 07 May 2015