CES 2021: Tuneable spectacles let you adjust your lenses

A pair of glasses with "tuneable" lenses has been unveiled at this year's virtual CES tech show.

The Voy glasses work as both reading glasses and distance glasses in one, as the lenses can be adjusted from +2.0 to -5.0 prescriptions.

BBC Click's Chris Fox tried on the "jam jar" specs.

See more at Click's website and @BBCClick