Dry eye syndrome (DES) is a condition that makes your eyes feel uncomfortable due to a lack of tears to lubricate your eyes. Dry eye syndrome is a common problem that affects at least an estimated 1 ...

Some of these facts sound unreal.

The eye you instinctively close when you aim a camera has a biological explanation that spans hundreds of millions of years.

Eye bleeding typically means bleeding or a broken blood vessel involving the tissue layers on the outer surface of the eye. This is a subconjunctival hemorrhage. But there is another, less common type ...