By: Dr. Jenna Snow, OD – Family Vision Clinic
Some people have the misconception that people who are colour blind see the world in only black, white, and gray. While this condition does exist, called achromatopsia, it is a quite rare form of complete colour blindness with a prevalence of only 1 in 30 000 people1. There are actually many different kinds of colour vision deficiencies, depending on the range of colours one may see, or the perceived difference between colours. In most types of colour blindness, there is no actual loss of vision, so the term “colour blindness” is often more accurately described as a “colour vision deficiency”.