If you’ve ever suffered from dry, irritated eyes or struggled to fall asleep after a long day of staring at your computer, you may have been tempted to purchase a pair of blue-light-blocking ...

However, up to 10% of people with Crohn’s also experience irritation and inflammation in one or both eyes. Crohn’s-related eye disorders can be painful. In rare cases, they can lead to vision ...

(In studies, gray and blue have historically been combined.) With this change, gray and green now rank as the rarest eye colors. Gray eyes may contain just enough melanin in the front layer to dim the ...

The six-eyed sand spider is a species of arachnid living in deserts and hot, dry climates throughout Southern Africa. They get their name from the six eyes in three pairs on their head. These spiders ...