All About Color Vision Deficiency
What is Color Vision Deficiency?
Color vision deficiency, or color blindness, is the inability to distinguish certain shades of colors. In highly severe cases, people can’t see the concerned colors at all, though very few people are completely color blind (who can see things only as black, white, and shades of gray).
Color blindness occurs when there is damage or loss of cones, which are the photoreceptors in the retina, making color vision possible. If the cones lack one or more light-sensitive pigments, the color perception will be deficient, making it difficult to see one or more of the three primary colors.
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Aaron Barriga is the online marketing manager for Insight Vision Center. With a knack for understanding medical procedures, and an interest in eye and vision health, Aaron loves to share what he knows and what he learns. He blogs to inform readers about the latest eye care technology and other topics related to eye care, especially LASIK.
