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Retinal Vein Occlusion: An Experimental Study

Retinal Vein Occlusion: An Experimental Study Abstract Introduction In this study a method for the production of venous occlusion in the retinal veins of the cat will be described. Changes so produced will be reported. Becker and Post1 have described a method for the production of experimental venous occlusion in the cat using an intraocular electrode. These workers described changes in eyes in which venous occlusion had been produced. They stated "Serial sections of such eyes revealed hemorrhages, exudates and venous thrombi which became organized and recanalized." With the availability of the retinal light coagulator of Meyer-Schwickerath, Dr. George N. Wise suggested its use in experimental venous occlusion. Material and Methods The animals were healthy cats weighing 2-2.5 kg. The pupils were maximally dilated by repeated instillation of atropine sulfate 1%. Intraperitoneal pentobarbital (Nembutal) gave satisfactory anesthesia. The lids and nictitating membrane were retracted with a suitable speculum. It is important that as little time as References 1. Becker, B., and Post, L. T.: Retinal Vein Occlusion , Am. J. Ophth. 34:677, 1951. 2. Meyer-Schwickerath, G.: Further Progress in the Field of Light Coagulation , Tr. Ophth. Soc. U. Kingdom 77:241, 1957. 3. Ham, W. T.; Wiesinger, H.; Guerry, D.; Schmidt, F. H.; Williams, R. C.; Ruffin, R. S., and Shaffer, M. D.: Experimental Production of Flash Burns in the Rabbit Retina , Am. J. Ophth. 43:711, 1957. 4. Campbell, F. P.: The Eye of the Cat in Ophthalmic Research, Arch. Ophth., this issue, p. 11. 5. Campbell, F. P.4 6. Guerry, D., and Wiesinger, H.: Experiences with Light Coagulation of Fundus Lesions , Tr. Am. Ophth. Soc. 57:110, 1959. 7. Eissler, R.: Photocoagulation: Theoretical Considerations on Its Use in the Peripheral Retina , A.M.A. Arch. Ophth. 63:993, 1960.Crossref 8. Hartridge, H., and Yamada, K.: Accommodation and Other Optical Properties of the Eye of the Cat , Brit. J. Ophth. 6:481, 1922.Crossref 9. Goldmann, H.: Two Lectures on Biomicroscopy of the Eye , Berne, Rosch, Vogt and Company, 1954, p. 53. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

Retinal Vein Occlusion: An Experimental Study

Archives of Ophthalmology , Volume 65 (1) – Jan 1, 1961

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Publisher
American Medical Association
Copyright
Copyright © 1961 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1961.01840020004002
Publisher site
See Article on Publisher Site

Abstract

Abstract Introduction In this study a method for the production of venous occlusion in the retinal veins of the cat will be described. Changes so produced will be reported. Becker and Post1 have described a method for the production of experimental venous occlusion in the cat using an intraocular electrode. These workers described changes in eyes in which venous occlusion had been produced. They stated "Serial sections of such eyes revealed hemorrhages, exudates and venous thrombi which became organized and recanalized." With the availability of the retinal light coagulator of Meyer-Schwickerath, Dr. George N. Wise suggested its use in experimental venous occlusion. Material and Methods The animals were healthy cats weighing 2-2.5 kg. The pupils were maximally dilated by repeated instillation of atropine sulfate 1%. Intraperitoneal pentobarbital (Nembutal) gave satisfactory anesthesia. The lids and nictitating membrane were retracted with a suitable speculum. It is important that as little time as References 1. Becker, B., and Post, L. T.: Retinal Vein Occlusion , Am. J. Ophth. 34:677, 1951. 2. Meyer-Schwickerath, G.: Further Progress in the Field of Light Coagulation , Tr. Ophth. Soc. U. Kingdom 77:241, 1957. 3. Ham, W. T.; Wiesinger, H.; Guerry, D.; Schmidt, F. H.; Williams, R. C.; Ruffin, R. S., and Shaffer, M. D.: Experimental Production of Flash Burns in the Rabbit Retina , Am. J. Ophth. 43:711, 1957. 4. Campbell, F. P.: The Eye of the Cat in Ophthalmic Research, Arch. Ophth., this issue, p. 11. 5. Campbell, F. P.4 6. Guerry, D., and Wiesinger, H.: Experiences with Light Coagulation of Fundus Lesions , Tr. Am. Ophth. Soc. 57:110, 1959. 7. Eissler, R.: Photocoagulation: Theoretical Considerations on Its Use in the Peripheral Retina , A.M.A. Arch. Ophth. 63:993, 1960.Crossref 8. Hartridge, H., and Yamada, K.: Accommodation and Other Optical Properties of the Eye of the Cat , Brit. J. Ophth. 6:481, 1922.Crossref 9. Goldmann, H.: Two Lectures on Biomicroscopy of the Eye , Berne, Rosch, Vogt and Company, 1954, p. 53.

Journal

Archives of OphthalmologyAmerican Medical Association

Published: Jan 1, 1961

References