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 ...

Good vision is a characteristic that is nice to have. Unfortunately, only 35% of adults have 20/20 vision without the use of glasses, contacts, or vision-correcting surgery. Though many of us do not ...

Color blindness, or color vision deficiency, causes a person to see colors differently from most other people. There are several types of color blindness. Color vision deficiency or loss has multiple ...