Test your eyesight and colour vision with this fun optical illusion challenge. Spot the hidden number in a colourful circle to see how well you can distinguish colours. Difficulty in seeing the number ...

Although blind people cannot see, they often still possess the brain regions that enable vision. Does this mean that blind people can dream in visual images? In some cases, they can. A 2014 study ...

But there is a great consolation in being loved distinctly. And this love extends to the world around us: You may know the ...

These three cones work together for us to see the full visible spectrum. But, in colour blindness, one cone cell type doesn’t function properly. This means that people with colour vision ...

Globally, at least 2.2 billion people have a vision impairment or blindness, of whom at least 1 billion have a vision impairment that could have been prevented or has yet to be addressed.

Most people have had an eye problem. Some are minor and go away on their own, or are treatable at home. Others need expert care. If your eyes are dry and itchy, there could be many causes.

An curved arrow pointing right. Guide dogs from The Seeing Eye are specially bred, trained, and matched with people with blindness and low vision all over the US and Canada. These dogs are ...

For people experiencing vision loss, technology can be a game-changer ... "It's very important because I lost my ability to read, but I see certain shapes, I see you, I can see your outline ...