Color vision tests using a calibrated color monitor controlled by a microprocessor

A feasibility study was performed to determine if colors on a CRT could be measured accurately and then controlled by a computer to provide a means of performing color vision tests. Benefits from using a calibrated computer/monitor system could be decreased testing time, exact diagnosis, and possibly the means of quantifing the degree of the deficiency. The Atari 800XL Computer with a Sakata color monitor were used for the experimentation due to their low cost, availability, and ability to create the largest number of colors of any computer in the same price range. The system was calibrated and color vision tests were performed with five subjects of known deficiencies. The results were compared to testing with the Ishihara Charts. The color vision tests with this system were able to detect for major color deficiencies without any difficulty. The color vision test was able to distinguish between trichromatic and dichromatic vision and the types of dichromats