color vision deficiencies

Color vision deficiencies can be classified as acquired or inherited.

Congenital color vision deficiencies are subdivided based on the number of primary hues needed to match a given sample in the visible spectrum.

Inherited: There are three types of inherited or congenital color vision deficiencies: monochromacy, dichromacy, and anomalous trichromacy.

At NYU, members of his laboratory showed that genetic variants in the X-cone opsin caused color vision deficiencies by altering spectral tuning, transport, and stability of the encoded viusal pigment proteins.

COLORMAX TECHNOLOGIES INC., Tustin, Calif., said the Food and Drug Administration had approved its new Color Vision Enhancement lenses for treating color blindness and color vision deficiencies.