When you view the world a certain way, it's easy to forget not everyone has the same vision.

To understand how animals see, look through their eyes. By Ed Yong. (Feb. 2016)

Regardless of how they look, all human eyes are in fact brown at their core, with the reflection of light determining the color we see in them.

Queen of Double Eyes, that’s how Toronto-based artist Alex Garant introduces herself when she stands next to her mind-bending double vision oil paintings.

There is a worldwide shortage of corneas for transplant operations but Sri Lanka is doing its best to satisfy demand, without seeking any reward - at least in this life.

A bionic eye could restore sight to some blind people. Scientists have developed an implant, which delivers long pulses of electrical current in people blinded by a rare condition in which photoreceptor cells gradually cease to work. It brings hope to the 20,000 Britons with incurable retinitis pigmentosa (RP) after a study showed the device improves image sharpness. RP is a rare hereditary condition that causes gradual deterioration of the...

They help you see the world, but how much do you really know about the windows to your soul? Test your knowledge.