A new study provides the best evidence to date that the connection patterns between various parts of the human brain can tell scientists the specialized functions of each region. Subscribe to our ...

Few biological facts seem as irrevocable as brain death. It has long been assumed that when we die, our neurons die with us. But a new study on the neuron-packed tissue of the eye is beginning to ...

Dry eye disease affects millions of people, causing burning, redness, and constant eye fatigue that can worsen over time. Scientists now believe the problem may begin deep inside tear glands, where a ...

Dry eye disease happens when the lacrimal glands do not make enough tears, or the tears do not have the right balance of ...