Bifocals and trifocals allow people with limited vision to see objects at varying distances, but only by refocusing on the object from a different vantage. A scientist named Zeev Zalevsky responded to this problem by de...

Apparently, there's rising demand in the UK for monocles. In The Express, Adam Edwards writes: The optician Vision Express has announced it is to re-introduce the single eye-glass following a sudden surge of interest...