You’ve never seen these ones before! You might have taken color blindness tests with numbers online or when getting your eyes ...

Daltonism is a specific type of red-green color vision deficiency, also known as color blindness. People with red-green color vision deficiency may confuse colors that contain red or green elements.

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 ...