protanomalous
/ˌprəʊtəˈnɒmələs/Ophthalmology
adjective
Affected by protanomaly; of, relating to, or of the nature of protanomaly. Also as noun (with the): people with protanomaly collectively ( rare ).
Origin
Early 20th century; earliest use found in American Journal of Psychology. From German protanomal protanomalous + -ous, after anomalous.