Consult your instructor or read your syllabus to see what supplemental materials are recommended. The science behind color vision can be either incredibly general that a clinician needs to be aware (testing methods, prevalence, disorder types and causes) or very specific vision science (ICVS-heavy phd sensory stuff). The clinical basics is what you need to succeed in the office and on NBEO, but for your class, the instructor may have different outlook. I know my color vision course was supposedly dumb-downed when a vision scientist phd retired and a faculty optometrist took over the course. Talk to your instructor.
