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Japanese

Detection rate of acquired color defects by standard Pseudoisochromatic plates Part 2.: Report 1 Normal response Kazuo Ichikawa 1 , Jun Nakashima 1 , Noriko Miyagawa 2 , Shoko Tanabe 3 1Dep. of Ophthalmol., Chukyo Hosp. 2Dept. of Ophthalmol. Nagoya Natl. Hosp., 3Dept. of Ophthalmol. Nagoya 1st. Red Cross Hosp. pp.1035-1038
Published Date 1985/8/15
DOI https://doi.org/10.11477/mf.1410209523
  • Abstract
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We examined 227 normal subjects with the useof Standard Pseudoisochromatic Plates Part 2 (SPP-2). The ages ranged from 6 to 79 years.

The left numeral on Plate 3 was missed by all except 29 subjects (failure rate : 87%). A misread-ing of this plate, therefore, has no diagnostic value and is to be considered as normal response.

Out of 19 numerals of SPP-2, except the left one on Plate 3, at least 17 were correctly read by 198 subjects (94%). Subjects aged over 60 tended to show a higher rate in this minor false positive re-sponse.

A group of 5 color-normal subjects were asked to read the SPP-2 under artificially induced refra-ctive errors induced by glasses. The reading abillity of Spp-2 was independent of visual loss in the near so long as the visual acuity level is more than 0.2.


Copyright © 1985, 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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