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Urea in Cataract Extraction: Preliminary Report

Urea in Cataract Extraction: Preliminary Report Abstract Vitreous loss during cataract extraction remains a serious hazard. Its incidence has declined with development of improved akinesia, anesthesia, and particularly with the employment of digital compression.1 Nevertheless, ophthalmologists would welcome any technique which could further reduce the occurrence of this complication. The use of urea as an ocular hypotensive agent prior to routine cataract surgery has not previously been reported. For this reason we undertook to assess the effect of intravenous urea prior to cataract extraction on the incidence of vitreous loss. We reasoned that urea would lower intraorbital, intraocular, and intravitreal pressure to a level which would allow cataract extraction to be performed with greater safety. Case Selection We are reporting the results of study on 100 unselected private and ward patients operated upon under the supervision of independent observers at 3 different institutions. The professional level of the operating surgeons includes both resident and attending physicians. References 1. Kirsch, R. E., and Steinman, W.: Digital Pressure, An Important Safeguard in Cataract Surgery , A.M.A. Arch. Ophthal. 54:697, 1955.Crossref 2. Galin, M. A.; Aizawa, F., and McLean, J. M.: Urea as an Osmotic Ocular Hypotensive Agent in Glaucoma , A.M.A. Arch. Ophthal. 62:347, 1959.Crossref 3. Galin, M. A.; Aizawa, F., and McLean, J. M.: Intravenous Urea in the Treatment of Acute Angle-Closure Glaucoma , Amer. J. Ophthal. 50: 379, 1960. 4. Hill, K.; Whitney, J. B., and Trotter, R. R.: Intravenous Hypertonic Urea in the Management of Aute Angle-Closure Glaucoma , Arch. Ophthal. 65:497, 1961.Crossref 5. Davis, M. D.; Duehr, P. A., and Javid, M.: The Clinical Use of Urea for Reduction of Intraocular Pressure , Arch. Ophthal. 65:526, 1961.Crossref 6. Galin, M. A., and Baras, I.: Intravenous Urea in Retinal Detachment Surgery , Arch. Ophthal. 65:652, 1961.Crossref http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

Urea in Cataract Extraction: Preliminary Report

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Publisher
American Medical Association
Copyright
Copyright © 1962 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1962.00960020423007
Publisher site
See Article on Publisher Site

Abstract

Abstract Vitreous loss during cataract extraction remains a serious hazard. Its incidence has declined with development of improved akinesia, anesthesia, and particularly with the employment of digital compression.1 Nevertheless, ophthalmologists would welcome any technique which could further reduce the occurrence of this complication. The use of urea as an ocular hypotensive agent prior to routine cataract surgery has not previously been reported. For this reason we undertook to assess the effect of intravenous urea prior to cataract extraction on the incidence of vitreous loss. We reasoned that urea would lower intraorbital, intraocular, and intravitreal pressure to a level which would allow cataract extraction to be performed with greater safety. Case Selection We are reporting the results of study on 100 unselected private and ward patients operated upon under the supervision of independent observers at 3 different institutions. The professional level of the operating surgeons includes both resident and attending physicians. References 1. Kirsch, R. E., and Steinman, W.: Digital Pressure, An Important Safeguard in Cataract Surgery , A.M.A. Arch. Ophthal. 54:697, 1955.Crossref 2. Galin, M. A.; Aizawa, F., and McLean, J. M.: Urea as an Osmotic Ocular Hypotensive Agent in Glaucoma , A.M.A. Arch. Ophthal. 62:347, 1959.Crossref 3. Galin, M. A.; Aizawa, F., and McLean, J. M.: Intravenous Urea in the Treatment of Acute Angle-Closure Glaucoma , Amer. J. Ophthal. 50: 379, 1960. 4. Hill, K.; Whitney, J. B., and Trotter, R. R.: Intravenous Hypertonic Urea in the Management of Aute Angle-Closure Glaucoma , Arch. Ophthal. 65:497, 1961.Crossref 5. Davis, M. D.; Duehr, P. A., and Javid, M.: The Clinical Use of Urea for Reduction of Intraocular Pressure , Arch. Ophthal. 65:526, 1961.Crossref 6. Galin, M. A., and Baras, I.: Intravenous Urea in Retinal Detachment Surgery , Arch. Ophthal. 65:652, 1961.Crossref

Journal

Archives of OphthalmologyAmerican Medical Association

Published: Apr 1, 1962

References