protanopia

Missing red perception

Protanopia is a form of color blindness in which red light cannot be perceived.

People with protanopia confuse reds with greens and see the world in shades of blue and yellow.

The condition results from missing or defective red cone cells in the retina.

His protanopia made traffic lights difficult to distinguish.

diagnosis

Ishihara test

Color vision diagnostic

physiology

photopigment

Light-absorbing retinal molecule

macula

types

deuteranopia

Inability to perceive green

genetics

recessive

Masked unless paired identically

chromosome · allele · gene · heredity · genotype · phenotype · pedigree · locus · congenital · familial

perception

color matching

Pairing harmonious hues

adaptation

color filters

Tinted light-modifying sheets

workplace accommodations

Opposites
color vision capability

protanopiacolor perception

Ability to distinguish hues

type of color blindness

protanopiadeuteranopia

Inability to perceive green

Family

dichromatic

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