There are quick tests you can do at home which could help determine if you're eyesight isn't at its best. One test could figure ... centre of the circle with one eye covered and watch out for ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

A simple eye test carried out by opticians could help predict who is at risk of developing dementia, a study suggests. The test is usually done to spot early signs of eye disease, by looking at ...