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Visual Acuity and Intraocular Gas

Visual Acuity and Intraocular Gas Abstract To the Editor. —One major advantage of silicone oil over short- and long-acting intraocular gases is the ability of the patient to see through this vitreous substitute postoperatively. It is recognized that eyes with intraocular gas do not have useful vision. Consequently, there is a delay in assessing the postoperative visual recovery in eyes with intraocular gas bubbles.We measured reading visual acuities in 11 aphakic eyes, with gas bubbles occupying more than two thirds of the volume of the ocular cavity. Initially, subjective refraction of three patients at 33-cm reading distance necessitated a correction varying between +28 diopters (D) and +38 D. Thereafter, we found that holding an aspheric biconvex lens (+28 D or +30 D, used for indirect ophthalmoscopy) in front of the eye and varying the vertex distance yielded the same final reading visual acuities. Reading visual acuities in 11 patients varied from hand motions to 20/20. References 1. Landers MB III, Stefansson E, Wolbarsht ML: The optics of vitreous surgery . Am J Ophthalmol 1981;91:611-614. 2. Stefansson E, Tiedeman J: Optics of the eye with air or silicone oil . Retina 1988;8:10-19.Crossref http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

Visual Acuity and Intraocular Gas

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References (2)

Publisher
American Medical Association
Copyright
Copyright © 1988 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1988.01060140509005
Publisher site
See Article on Publisher Site

Abstract

Abstract To the Editor. —One major advantage of silicone oil over short- and long-acting intraocular gases is the ability of the patient to see through this vitreous substitute postoperatively. It is recognized that eyes with intraocular gas do not have useful vision. Consequently, there is a delay in assessing the postoperative visual recovery in eyes with intraocular gas bubbles.We measured reading visual acuities in 11 aphakic eyes, with gas bubbles occupying more than two thirds of the volume of the ocular cavity. Initially, subjective refraction of three patients at 33-cm reading distance necessitated a correction varying between +28 diopters (D) and +38 D. Thereafter, we found that holding an aspheric biconvex lens (+28 D or +30 D, used for indirect ophthalmoscopy) in front of the eye and varying the vertex distance yielded the same final reading visual acuities. Reading visual acuities in 11 patients varied from hand motions to 20/20. References 1. Landers MB III, Stefansson E, Wolbarsht ML: The optics of vitreous surgery . Am J Ophthalmol 1981;91:611-614. 2. Stefansson E, Tiedeman J: Optics of the eye with air or silicone oil . Retina 1988;8:10-19.Crossref

Journal

Archives of Ophthalmology – American Medical Association

Published: Oct 1, 1988

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