Achromatopsia - Color Blindness

What are the signs and symptoms of the condition?

An individual with achromatopsia cannot tell the difference between colors. Some people with achromatopsia can only see shades of gray. A person with this condition usually has poor distance vision, light sensitivity, and rapid eye movement.

Dyschromatopsia is the more common form of color blindness. Individuals with this condition usually have excellent vision. The person usually cannot tell the difference between shades of red and green. In rare cases, the person cannot tell the difference between shades of blue and yellow.