Photoreceptor outer segments in aqueous humor from dogs with rhegmatogenous retinal detachments

Patricia J. Smith From the Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Health Science Center, University of Florida, Gainesville, FL 32610-0125 (Smith, Mames, Samuelson, Lewis, Brooks), and The Retina Center, North Florida Medical Arts Building, 6400 Newberry Rd, Ste 301, Gainesville, FL 32605 (Mames).

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Robert N. Mames From the Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Health Science Center, University of Florida, Gainesville, FL 32610-0125 (Smith, Mames, Samuelson, Lewis, Brooks), and The Retina Center, North Florida Medical Arts Building, 6400 Newberry Rd, Ste 301, Gainesville, FL 32605 (Mames).

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Don A. Samuelson From the Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Health Science Center, University of Florida, Gainesville, FL 32610-0125 (Smith, Mames, Samuelson, Lewis, Brooks), and The Retina Center, North Florida Medical Arts Building, 6400 Newberry Rd, Ste 301, Gainesville, FL 32605 (Mames).

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Patricia A. Lewis From the Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Health Science Center, University of Florida, Gainesville, FL 32610-0125 (Smith, Mames, Samuelson, Lewis, Brooks), and The Retina Center, North Florida Medical Arts Building, 6400 Newberry Rd, Ste 301, Gainesville, FL 32605 (Mames).

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Dennis E. Brooks From the Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Health Science Center, University of Florida, Gainesville, FL 32610-0125 (Smith, Mames, Samuelson, Lewis, Brooks), and The Retina Center, North Florida Medical Arts Building, 6400 Newberry Rd, Ste 301, Gainesville, FL 32605 (Mames).

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Objective

To determine whether photoreceptor outer segments can be found in aqueous humor from dogs with rhegmatogenous retinal detachment (RRD).

Design

Case series.

Animals

4 dogs with unilateral RRD, 2 dogs with bilateral RRD, 1 dog with unilateral non-RRD, and 1 dog with glaucoma without retinal detachment.

Procedure

Aqueous humor samples were fixed in 2% glutaraldehyde and examined by means of transmission electron microscopy.

Results

Outer segments were found in aqueous humor from 7 of 8 eyes with RRD but were not found in aqueous humor from dogs with non-RRD or glaucoma.

Clinical Implications

Photoreceptor outer segments may move into the anterior chamber of eyes with RRD. (J Am Vet Med Assoc 1997;211:1254–1256)

Objective

To determine whether photoreceptor outer segments can be found in aqueous humor from dogs with rhegmatogenous retinal detachment (RRD).

Design

Case series.

Animals

4 dogs with unilateral RRD, 2 dogs with bilateral RRD, 1 dog with unilateral non-RRD, and 1 dog with glaucoma without retinal detachment.

Procedure

Aqueous humor samples were fixed in 2% glutaraldehyde and examined by means of transmission electron microscopy.

Results

Outer segments were found in aqueous humor from 7 of 8 eyes with RRD but were not found in aqueous humor from dogs with non-RRD or glaucoma.

Clinical Implications

Photoreceptor outer segments may move into the anterior chamber of eyes with RRD. (J Am Vet Med Assoc 1997;211:1254–1256)

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