A man who went to his local optician with double vision he thought was caused by looking at his screen too long was diagnosed with a rare bone cancer.<br /><br />David Ly, 44, was suffering from double vision in January 2020 but put it down to computer vision syndrome - eye problems caused by prolonged computer use.<br /><br />The double vision persisted for one week and after colleagues urged him to get his symptoms checked he went to his local optician.<br /><br />The optician at Specsavers was unable to find any problems with David's vision and urged him to visit A&E.
