Top 10 Most Common Genetic Disorders

6) Color Blindness

Color Blindness

Our retinal rods are responsible for vision during night whereas retinal cones are responsible for vision during day. Color blindness attributed to x-linked recessive gene characterized by inability to identify all the colors in a visible spectrum and differentiate the colors, as the retinal cones are not properly developed.

Color blindness may be a genetic disorder but injury to a particular cranial nerve i.e., optic nerve will also result in color blindness. As x linked recessive gene is involved, men are more vulnerable to this condition than women. Red-green color blindness test or ishihara test is the best tool to diagnose color blindness.

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