Color Vision

Color vision testing is important and should be done routinely, especially in children, to screen for color vision deficiency (CVD). Most individuals are unaware of this condition, and it is usually detected when they fail occupational-related color vision tests, leading to adverse psychological consequences [1]. Some experience difficulties in day-to-day activities such as driving, identifying a suitable matching pair of clothes, etc. This highlights the importance of assessing color vision regularly and providing suitable counseling to people with color vision issues. CVD is an X-linked condition [2], and therefore, its prevalence is higher in males (Caucasians [3]: 8% and Indians [4]: 3%). This chapter will focus briefly on the history of the development of color vision tests, the principles of color vision, and their application in the development of color vision tests.