pseudoisochromatic

adjective
pseu·​do·​iso·​chro·​mat·​ic | \ -ˌī-sə-krō-ˈmat-ik How to pronounce pseudoisochromatic (audio) \

Medical Definition of pseudoisochromatic

: falsely or apparently isochromatic specifically : of, relating to, using, or being a set of colored plates that include some which appear isochromatic to individuals with color-vision abnormality and that are used in the Ishihara test for color blindness