Quick Facts:

• Most cases of colorblindness occur at birth but you can develop color deficiency later in life
• Estimated 250 million people in the world are colorblind
• 8% of men worldwide are colorblind while only .5% of women are

Cones vs. Rods:

• Rods only detect light vs dark
• Cones detect color

Cones:

• The different cones that detect color are red, blue, and green. (r, g, b)
• The three cones, S, M, and L, send messages to the brain which interpret millions of different colors
• (Blue) S-Cone: Responsive to short wavelength
• (Green) M-Cone: Responsive to medium wavelength
• (Red) L-Cone: Responsive to long wavelength

Types of colorblindness

• Monochromatism: The person only has one or zero set of cones
• Dichromatism: The person has two out of the three cone types while the third is completely missing
• Anomalous trichromatism: Has all three cones, however the responsiveness to colors are