3 types of color vision deficiency

Having color vision deficiency (also called color blindness) means you can’t see certain colors the way most people do or you may not see color at all. The picture below will explain to you the common types of vision deficiency.

色觉缺陷（也称为色盲）意味着您无法像大多数人一样看到某些颜色，或者您可能根本看不到颜色。下图将为您解释常见的视力缺陷的类型