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Corneal Astigmatism and the Correcting Spectacle Lens in Aphakia.:Report I. Calculation of the Correcting Cylinder Lens Power from the Corneal Astigmatism Determined with an Ophthalmometer Sukeyuki Oshima 1 1Department of Ophthalmology, Tokyo Medical and Dental University pp.1247-1251
Published Date 1974/11/15
DOI https://doi.org/10.11477/mf.1410205208
  • Abstract
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Optical problems necessary to utilize ophthal-mometry for the determination of the astigma-tism of the aphakic eye were studied. The re-fractive index used for the computation of the corneal refractive power graduated on the oph-thalmometric scale differs from 1.332 to 1.3376. Such difference in the index was ascertained to give negligible error to the estimation of the corneal astigmatism.


Copyright © 1974, 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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