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第1色覚異常9名,第2色覚異常29名,第3色覚異常4名,杆体一色型色覚2名について,標準色覚検査表第2部後天異常用(SPP part 2)で検査して,以下の結論を得た.
(1)第1色覚異常,第2色覚異常ともに,SPP part 2の赤緑色覚異常検出用5文字の内第12表の文字「4」をほとんど間違えず,他の4文字はほとんど間違えた.
(2)第1色覚異常,第2色覚異常ともに,SPP part 2の青黄色覚異常検出用11文字の内第3表の文字「2」のみを誤ったが,誤りは第1色覚異常に少なかった.
(3)第1色覚異常,第2色覚異常ともに,SPP part 2の第5表の文字「2」を多く誤り,この文字は特定の色覚異常の検出用に作られていないが,赤緑色覚異常検出用にすべきであると考えた.
(4)第3色覚異常は,SPP part 2の青黄色覚異常文字以外をほとんど間違えなかった.
(5)杆体一色型色覚は,SPP part 2を全表誤読した.
We evaluated 42 subjects with congenital color vision defects with the use of Standard Pseudoiso-chromatic Plates Part 2 (SPP-part 2). The subjects included protanopia (4 cases), protanomalia (5), deuteanopia (11), deuteanomalia (18), tritanopia (1) and incomplete tritanopia (3).
The left numeral on plate Nr. 3 was missed by almost all the congenital color defective subjects. It was read correctly by 1 case of deuteanomalia and 2 each of protanopia and protanomalia.
The left numeral on plate Nr. 12 were missed by all congenital color defective subjects except 2 cases of protanopia.
All the plates intended for blue-yellow defective were missed by the subject with tritanopia. All the numerals in the SPP-part 2, except those intended for blue-yellow defectives, were read correctly by subjects with tritanopia.
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