Which term describes individuals with a normal number of cones but altered color perception?

An individual classified as an anomalous trichromat has a typical number of cone photoreceptors, which means they possess three types of cones that are usually responsible for color vision. However, in this condition, there is a deviation in the sensitivity of one or more of these cones compared to a standard vision. This altered sensitivity leads to differences in color perception, making it difficult for these individuals to distinguish between certain colors, particularly in the red-green spectrum.

This term is distinct because other categories, such as monochromats, lack one or more types of cone cells entirely, resulting in the inability to perceive color, while tritanomalous trichromats specifically refer to individuals with altered sensitivity in the blue-yellow region. Non-color vision does not adequately describe the functionality of cones, as it refers to an absence of color perception without specifying the number of cones present.

Thus, the characterization of an anomalous trichromat accurately reflects the condition of having a normal complement of cones while experiencing altered color perception.