Rinsho Ganka Volume 55, Issue 4 (April 2001)

New color vision tests to evaluate faulty color recognition Kaoru Nakamura 1 , Osamu Okajima 2 , Yoshiteru Nishio 3 , Kenji Kitahara 3 1Dept of Ophthalmol, Tokyo Women's Med Univ 2Dept of Ophthalmol, Sanraku Hosp 3Dept of Ophthalmol, The Jikei Univ Sch of Med pp.641-645
Published Date 2001/4/15
DOI https://doi.org/10.11477/mf.1410907280
  • Abstract
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Two new types of color vision tests were designed to assess faulty color recognition in color vision deficiencies based on principles as are different from conventional color vision tests. In one, the subject is asked to choose either of red, green and gray lines among 10 lines that are randomly colored in red, green, gray, yellow or blue. In the other, the subject is asked to select a total of 10 red azalea blossoms dispersed among numerous green leaves. Seventy-five congenital color-deficient persons and 20 normal subjects were examined. As a result, the number of correct answers differed significantly between dichromats and anomalous trichromats, and between anomalous trichromats and normal subjects. These tests are easy, sensitive and reproducible. They reflect the faulty color recognition that occurs unconsciously in color-deficient persons in their daily lives and may be useful in judging the qualifications required in their occupations.

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55巻4号 (2001年4月)
電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院