色覚精密検査新法

A New Colour Anomaly Test Chart

I．はじめに

　改良された色覚精密検査新法により約200名の色覚障害者を検査し，その結果を整理検討し，色覚障害の実態に迫り，その本質について考えた。

　しかし，この検査法の主目的はあくまでも，ごく実用的な色相，彩度識別能と色相認識能の検査にあるが，今のところ色相識別能については大体目的に近づいた感がふかい。

200 subjects with colour anomalies were tes-ted with the new colour-test chart of the au-thor. According to this method the subject to be tested is asked to locate the place upon the test chart which seems to the subject to be identical to the color strip handed to him. The test is repeated for 60 color strips with different hues, chromas and values.

The conducted studies have shown that co-lour anomaly can be grouped into 3 classes (low, middle and high) through the method. Those belonging to the high or severe color anomaly class represent roughly one third of the 200 cases.