"color perception test"[tiab] OR "color perception tests"[tiab] OR (hard[tiab] AND rand[tiab] AND rittler[tiab]) OR ishihara[tiab] OR hue[tiab] OR hues[tiab] OR "color vision test"[tiab] OR "color vision tests"[tiab] OR "cambridge colour test" [tiab] OR "farnsworth munsell"[tiab] OR (pseudoisochromatic[tiab] AND plates[tiab])
