Subjective Spectrum of Colour Sensation in Colour Defectives.

Part 5. Subjective Spectrum of Cases Diagnosed as Atypical by the Conventional Technique.

Abstract

Fifteen atypiCal cases of colour-defectives- as diagnosed with Professor Ishihara's international pseudbchromatic charts were subjected to the authors' techniqueof spectral examination as well as anomaloscopic investigation.
Also in these case the at there' previous observations and statements' were' con-firmed without exception.
Conventional class fication of colour-defectives into protanopia, deuteranopia, protanomaly and deuteranomaly was not based on a sound. ground of directive investigation of phenotypes.