Blindness is completely or severely reduced vision. Contrary to popular belief, most people who are blind have some vision—only about 15% of blindness results in total vision loss. Blindness can occur ...

Night blindness, also known as nyctalopia, doesn’t mean you’re truly blind. But having this condition does mean you may have difficulty with tasks such as driving at night or moving around your house ...

The most common types of color blindness, or color vision deficiency, are genetic. However, other types may develop due to injuries, eye diseases, health problems, and side effects of treatment.