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Japanese

Photic retinopathy by operating microscope. Shielding effect by black contact lens Eiji Kumagai 1 , Akira Negi 2 , Ryuzo Fukao 3 , Miyo Matumura 4 , Nobuchika Ogino 5 1Dept of Ophthalmol, Hikone Citizen's Hosp 2Dept of Ophthalmol, Tenri Hosp 3Dept of Ophthalmol, Fac of Med, Kyoto Univ 4Dept of Ophthalmol, Hyougo Prefect Amagasaki Hosp 5Dept of Ophthalmol, Aichi Medical Univ pp.1319-1321
Published Date 1988/12/15
DOI https://doi.org/10.11477/mf.1410210559
  • Abstract
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In order to protect the retina from illumination by operating microscope during cataract surgery with intraocular lens implantation,we covered the cornea with black contact lens immediately after inserting the intraocular lens in the posterior cham-ber. Funduscopy was performed the next day and fluorescein fundus angiography one week after surgery.In a consecutive series of 20 eyes,it took an average of 27.4 minutes before extraction of nucleus, 15.7 minutes before lens insertion and 15.4 minutes before end of surgery,totalling 57.9 min-utes.

We observed no occurrence of photic retinopathy in the series, in sharp contract to the incidence of 35 % in a previous study by us under matching conditions concerning surgeons, surgical procedure, instrumentation and number of cases. Our findings show that our prior observations of retinal lesions were due to illumination through the implanted lens from the operating microscope. The photic retinal damage could completely be prevented by covering the cornea with a black contact lens immediately after insertion of intraocular lens.

Rinsho Ganka (Jpn J Clin Ophthalmol) 42(12):1319-1321, 1988


Copyright © 1988, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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