Are there people with complete color blindness?
Disease description:
If one is colorblind, one may feel that it somewhat affects daily life; therefore, complete color blindness would certainly have an even greater impact. Are there people with complete color blindness?
Doctor's answer (1)
Dr. Chen You
Complete color blindness (achromatopsia) does exist but is rare. This condition significantly impacts daily life, and affected individuals typically require corrective lenses to aid visual function and prevent severe interference with everyday activities. Color blindness is a congenital, inherited disorder characterized by impaired color perception. Most individuals with color blindness cannot distinguish between red and green. According to the trichromatic theory of color vision, all visible colors are composed of three primary colors—red, green, and blue. Individuals unable to perceive all three primary colors are classified as having complete color blindness. Although cases of complete color blindness do occur, they are relatively uncommon.
