2色閾値法による色覚検査—（第2報）臨床実験

Color Vision Tester Devised on the Principle of the Two-Color Threshold Method:Report II: Clinical Experiment

　2色閾値法を応用した色覚検査器が試作された。その原理や装置の詳細は第1報^1）で述べた。今回は色覚正常者と異常者とに使用した結果を報告する。

The instrument adopting the two-color thresh-old test was devised. In the previous paper the full information about this instrument was mentioned. Forty-one color normals and 73 color defectives-7 protanopes, 12 protanomalies, 25 deuteranopes, 29 deuteranomalies-were examin-ed by this instrument.

Good discrimination among color normals and protans was revealed. But it was, a little diffi-cult to separate deutans from normals. The dis-crimination among protan and deutan was quite satisfactory.