Double vision

Double vision or diplopia is when you see two images of an object instead of one. Sudden onset of diplopia can often have a serious underlying disease. The less dominant image is called ghost image.

Size of TV Screen and Viewing Distance

With both work and entertainment online, most of us are grappling with dry eyes and eye strain. One of the most frequently asked question during consults therefore is, how big should my television screen be, and how far away should I sit from the television. Here is a handy guide for choosing both: size of TV screen, and viewing distance.