Color-Blindness and Anomalies of Vision

Normal persons can make visual distinctions of three types: light from dark, yellow from blue, red from green; light-dark being the most primitive type of discrimination, and red-green the last acquired. Some otherwise normal persons fail to develop in their organs of sight more than a vestige of the mechanism for red-green discrimination. They are called red-green blind, or partially color-blind. A few persons have only the ability to make light-dark discrimination; they are called totally color-blind. These types of abnormality are discussed and tests for red-green blindness described.

Print ISSN

0097-5834

Published

1936-06

Content type

Original Research

DOI

10.5594/J08659