Other types, like blue-yellow color blindness, are not linked to the X chromosome and affect both sexes equally. Women can ...

Some people see the world differently. Literally. It's a phenomenon called color blindness. It's not just people who can' see color at all. Some people just can't see as many colors as the rest of us.

They may confuse red with green or blue with yellow and may repeatedly mislabel colours even after correction. Abnormal patterns of colouring during activities like drawing or painting may also ...