How Does Color Blindness Happen?
Color blindness almost always is inherited from the mother’s genes. It affects boys most often, as girls usually have additional genetic material that overrides the vision problem. About 1 in 12 males has some degree of color blindness, whereas only about 1 in 100 females has it. People with color blindness often have no other vision problems, but color blindness is sometimes a result of other eye diseases and vision problems.