Jan 10, 2025 · Is it red or is it green? Learn more about what causes this common eye condition and how to tell whether you can distinguish between certain shades of color.

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. Most …

Nov 5, 2025 · Most of the time, color blindness makes it hard to tell the difference between certain colors. Read about the types of color blindness and its symptoms, risk factors, causes, …

Jul 30, 2025 · What Causes Color Blindness? Usually, genes inherited from your parents cause faulty photopigments -- molecules that detect color in the cone-shaped cells, or “cones,” in …

Rarer genetic conditions causing color blindness include congenital blue–yellow color blindness (tritan type), blue cone monochromacy, and achromatopsia. Color blindness can also result …

Oct 14, 2025 · Color blindness occurs when light-sensitive cells in the retina fail to respond properly to variations in wavelengths of light that enable people to see an array of colors.

Jul 16, 2025 · Color blindness can happen when one or more of the color cone cells are absent, not working, or detect a different color than normal. Severe color blindness occurs when all …

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 …

Apr 29, 2025 · Color blindness occurs when there is a problem with the pigments in certain nerve cells of the eye that sense color. These cells are called cones. They are found in the light …

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 …