Add Yahoo as a preferred source to see more of our stories on Google. Illustration: Guardian Design (Illustration: Guardian Design) It started with an argument over a blanket. “I’m a visual ...

A new test called "Is my blue your blue?" reveals how different -- or similar -- your color perceptions are compared to everyone else. First there was “the dress,” then there was the sneakers, now ...

There are three main types of color vision deficiency: red-green, blue-yellow, and complete. Color blindness, or color vision deficiency, affects the way you perceive color and can make it hard to ...

You have probably seen one of the many viral videos: Someone puts on a pair of normal-looking glasses, and they gasp, or break down in tears. Colorblind, for the first time they are seeing the range ...

The Ishihara Color Test is a widely used screening tool for color vision deficiency, especially red-green color blindness. It is striking how easily this difference can go unnoticed. A child learns ...

This story is part of a series on the current progression in Regenerative Medicine. This piece is part of a series dedicated to the eye and improvements in restoring vision. This marks the first story ...

You may know someone who can’t tell the difference between specific colors — and there is a scientific reason it could be happening. The condition is known as color blindness. To share a better ...

An estimated 300 million people worldwide are color-blind. This typically means they can't distinguish certain shades of color, they struggle to tell how bright colors are or, more rarely, they can't ...

First there was “the dress,” then there was the sneakers, now there’s a debate over the color blue. If you’ve ever argued with a friend over whether something is blue or green, you’re not alone. A new ...