Investigators believe that most cases of color vision deficiency are due to an abnormality in the

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Color vision deficiency, also known as color blindness, is primarily caused by a genetic defect in the cone cells of the retina. The cones are responsible for detecting color, while the rods are responsible for detecting brightness and darkness. Defects in the bipolar cells or occipital cortex may also lead to color vision deficiencies, but these cases are far less common than cone abnormalities.

Investigators Believe That Most Cases of Color Vision Deficiency Are