And men are more frequently affected than women. The most common types of color blindness are: Deuteranomaly (red-green color ...

In deuteranomaly, which is the most common type of colour blindness, there is reduced sensitivity to green light. Reduced sensitivity to blue light is known as tritanomaly, and it is very rare.

HAS it been suggested that the traditional blindness of Homer may have been—in the absence among the ancients of a specific name for colour-blindness—merely the colour-blindness for which Dr ...