A sudden red patch on the white of the eye can look dramatic and cause understandable concern. In most cases, this is caused by a subconjunctival haemorrhage, a small bleed beneath the clear surface ...

A subconjunctival hemorrhage is a burst blood vessel in the white part of your eye. It's sometimes called a blood spot. Usually caused by a minor injury or strain, a subconjunctival hemorrhage that ...

Contrary to appearance, reflex bleeding is a voluntary defense rather than a lethal injury. The Texas horned lizard can shoot, on average, 2% of their body mass in blood. These lizards’ diets play a ...

Anemia can damage tissue in the eye, causing a range of symptoms. These might include discoloration, pale eyelids, hemorrhages, and eye test findings called cotton wool spots and Roth spots. Anemia ...

Eye health may hold the key to predicting heart disease and aging risk, according to new research. PeopleImages/Getty Images They say the eyes are in the window to the soul; however, scientists have ...

In the animal kingdom, surviving often means adapting. Animals must, over time, adapt not only to climate changes, habitat alterations, and changes in food sources, but also to how they protect ...