Woman dubbed real life vampire after being diagnosed with rare condition Bourbon maker Jim Beam halts production at main ...

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 ...

Color blindness, or color vision deficiency, is more common in males. This is due to how parents pass down a chromosome associated with the male sex. Red-green color vision deficiency is the most ...