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Japanese

Rectangular bifocal contact lens Koichiro Akiyama pp.1727-1732
Published Date 1960/11/15
DOI https://doi.org/10.11477/mf.1410207081
  • Abstract
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The author has succeeded in modeling a fixed rectangular bifacal contoct lens, which obtained good results in clinical applications.

The features of the new contactlens are as listed below:

1) Rectangular shaped, maintains fixed position always.

2) The lens is devided by a center horizontal line : the upper portion for the distant use and the lower for reading.

3) The centers of two lenses are overlapped so that double images and discontinuation of vision do not occur. In addition, patients can see the objects always through the optical center.

4) Ease of prescription and cmfortable to patient for full day's use.


Copyright © 1960, Igaku-Shoin Ltd. All rights reserved.

基本情報

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

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