Life from the perspective of colour blind people
Deuteranomalia: This is caused by reduced sensitivity to green light. Deutan color vision deficiencies are by far the most common forms of color blindness. This subtype of red-green color blindness is found in about 6% of the male population,
mostly in its mild form deuteranomaly.
Protanopia: Caused by a reduced sensitivity to red light due to either defective or a lack of long
-wavelength cones (red cones). Some scientists estimate that being a protan is associated with a risk of a road accident equivalent to having a blood alcohol level of between 0.05 and 0.08 per cent.
Tritanopia: People affected by tritan color blindness confuse blue with green and yellow with violet. This is due to a defective short-wavelength cone (blue cone). Whilst Protanopia and Deuteranomalia are significantly more common in men, tritanopia affects both sexes in equal amounts.
Monochromacy: Only around 0.00003% of the world’s population suffers from total color blindness, where everything is seen in black and white.