A person with perfect color perception is called normal trichromat. In the cases of disordered color sense we first of all distinguish whether it is congenital or acquired. The cases of congenital disorders are more numerous and more significant.
Color vision disorder when the ability to percept color tones is disabled is known as color blindness. The name color blindness is usually not absolutely precise because the most of affected patients in not able to perceive only certain color what means that they have color vision to some extent. In the case of total color blindness they do not distinguish any color and perceive surrounding world only as black-and-white with different levels of brightness. Color blind people comprise not even 1% of the entire population and the rest can be labeled as color mistaken.
A person with perfect color perception is called normal trichromat. In the cases of disordered color sense we first of all distinguish whether it is congenital or acquired. The cases of congenital disorders are more numerous and more significant.
Color vision disorder when the ability to percept color tones is disabled is known as color blindness. The name color blindness is usually not absolutely precise because the most of affected patients in not able to perceive only certain color what means that they have color vision to some extent. In the case of total color blindness they do not distinguish any color and perceive surrounding world only as black-and-white with different levels of brightness. Color blind people comprise not even 1% of the entire population and the rest can be labeled as color mistaken.