Color vision deficiency - AOA
Color vision deficiency is the inability to distinguish certain shades of color. The term "color blindness" is also used to describe this visual condition, but very few people are completely …
Color blindness - Wikipedia
Color blindness or color vision deficiency (CVD) is the decreased ability to see color, differences in color, or distinguish shades of color. [2] The severity of color blindness ranges from mostly …
Causes of Color Vision Deficiency - National Eye Institute
Jan 30, 2025 · What causes color vision deficiency? The most common kinds of color vision deficiency are genetic, meaning they’re passed down from parents to their children. If your …
Color Blindness: What It Is, Types & Causes - Cleveland Clinic
Sep 11, 2025 · Color blindness (color vision deficiency) happens because special nerve cells in your retinas are missing or don’t work properly. This makes you see some colors differently …
Color Blindness: Types, Causes, and Treatment - Healthline
Apr 16, 2025 · Color blindness, or color vision deficiency, affects the way you perceive color and can make it hard to distinguish between certain colors. People typically have three types of …
Color Blindness: Types, Causes, Symptoms, and Treatment of ...
Oct 14, 2025 · Color blindness is not a form of blindness at all, but a deficiency in the way you see color. If you’re colorblind, you have difficulty distinguishing certain colors, such as red and …
What Is Color Blindness? - American Academy of Ophthalmology
Jul 16, 2025 · Color blindness is when you are unable to see colors in a normal way. It is also known as color deficiency. Color blindness often happens when someone cannot distinguish …