PURPOSE: We examined a pseudoisochromatic color plate test by Kojima and Matsubara for young @entity1 which uses drawings of familiar objects rather than letters or numbers. First, we evaluated the test's efficacy as a @entity3641 screener and its validity in classifying the types of @entity3641 by comparing its results with those from the Moreland anomaloscope. Second, we eliminated the chromatic factor and evaluated the functional ability of young @entity1 to perform the task by determining how many correct responses were obtained using modified black/white replicas of the test plates. METHODS: Part 1: Twenty color-normal and 13 @entity3641 adults were diagnosed and classified with the Ishihara test, Panel D-15 test, and anomaloscope. Subjects were then tested with the Kojima-Matsubara test and result were compared with those from the anomaloscope. Part 2: Fifty @entity1 aged 3 to 7 years were tested with modified black/white test plate replicas. The number of correct responses for each plate was determined for five different age groups. RESULTS: Part 1: Among the 20 color-normal subjects, 18 read all 10 plates correctly and 2 subjects missed 1 of the 10. Only 1 of the 13 @entity3641 subjects exhibited the expected responses for plates 2 to 6 (used for @entity3641 screening). The @entity3641 subjects' responses for plates 7 to 10, which are used to classify red-green defects, were varied and only the protanomalous subjects (n = 2) followed the expected response pattern. Part 2: Of the 10 black/white modified plates, only 2 were correctly identified by all 50 @entity1 . The other plates had a recognition rate that ranged from 32 to 98%. CONCLUSIONS: Because the response patterns given by most of the @entity3641 adult subjects were different from those in the test manual, ambiguous results would occur if the Kojima-Matsubara test were used for color vision screening or the diagnosis of @entity3641 . In addition, the difficulty that many of the young @entity1 exhibited in identifying the objects in the black/white replica plates suggests that there would be a large number of false positive errors (classifying a color normal as @entity3641 ) when using this test in young @entity1 .

Evaluation of Kojima-Matsubara color vision test plates: validity in young XXXX .

@entity1 :: ('9606', 'Species') :: ['children'] @entity3641 :: ('MESH:D003117', 'Disease') :: ['color deficiency', 'color deficient', 'color deficiencies', 'color-deficient']
@entity1 :: (9606,Species) :: ['children']
