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 unnoticeable …
Color Blindness - National Eye Institute
Nov 5, 2025 · What is color blindness? If you have color blindness (color vision deficiency), it means you see colors differently than most people. Most of the time, color vision deficiency makes it hard to tell …
Color blindness - Symptoms and causes - Mayo Clinic
Jan 10, 2025 · Color blindness is an eye condition in which someone can't see the difference between certain colors. Though many people commonly use the term "color blind" for this condition, true color …
Color Blindness: How It Happens and What Causes It - WebMD
Jul 30, 2025 · Most people who are colorblind lead normal and complete lives. The condition might keep you from a job -- like a pilot -- that requires a certain level of color vision.
Color Blindness: Types, Causes, Symptoms, and Treatment of ...
Oct 14, 2025 · If you’re colorblind, you have difficulty distinguishing certain colors, such as red and green or blue and yellow. Color blindness (or, more accurately, color vision deficiency) is often an …
Color Blindness: Types, Causes, and Tests - Vision Center
Jun 13, 2025 · Color blindness causes you to see colors differently from most people. This common condition makes it difficult to distinguish between certain colors. Many people use the term “color …
What Is Color Blindness? Condition and Types Explained
Oct 18, 2025 · Color blindness, or color vision deficiency, refers to the inability of a person to correctly distinguish certain colors. Many people mistakenly believe that to be color blind is to view the world …
Color blindness: MedlinePlus Medical Encyclopedia
Apr 29, 2025 · Color blindness is a lifelong condition. Most people are able to adjust to it. People who are colorblind may not be able to get a job that requires the ability to see colors accurately. For …
Colour blindness | Genetics, Diagnosis & Symptoms | Britannica
Oct 31, 2025 · colour blindness, inability to distinguish one or more of the three colours red, green, and blue. Most people with colour vision problems have a weak colour-sensing system rather than a …
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 than usual. …