What do total color blind people see?

People with total color blindness, also known as monochromacy, see the world in shades of gray. This means that they cannot distinguish between colors, and everything they see appears in shades of black, white, and gray.

There are different types of monochromacy, but the most common type is rod monochromacy, which is caused by the absence of cone cells in the retina. Cone cells are responsible for color vision, so without them, people with rod monochromacy can only see in shades of gray.

Total color blindness is a rare condition, affecting only about 1 in 100,000 people. It is more common in males than females, and it is usually inherited.