Detect color blindness and color deficiency
This test is for preliminary screening only and cannot replace professional medical diagnosis. If test results are abnormal, please consult an eye doctor.
Normal color vision can clearly see the number
Color vision tests use specially designed plates to detect color blindness and color deficiency. The most common type is red-green color blindness, affecting about 8% of males and 0.5% of females.
Cannot perceive red light; red appears as dark gray or black, and it's difficult to distinguish between orange, yellow, and green.
Cannot perceive green light; green appears as beige or light brown, and it's difficult to distinguish between red and yellow.
Cannot distinguish blue and yellow; this type is relatively rare.