Double vision, or diplopia, occurs when a person sees two images instead of one. Performing certain eye exercises may help to reduce double vision in some cases. When a person has double vision, the ...

This is an image to demonstrate visual 'crowding' and test peripheral vision. Ensure that the red dot in the centre of the image is at eye level and focus on it. While holding your focus on the red ...

The development of a new tool for testing the eyesight of children under three could mean more children receive treatment for ...