TouchFocus Bifocal Glasses / Image: TouchFocus
A recent BBC post featured a new development in eyewear that could one day replace bifocals. A Japanese company, Mitsui Chemicals, has developed hi-tech glasses called TouchFocus that transform into bifocals with the push of a button. Liquid crystals in the lenses shift positions creating an area within the lens that can be used to focus on things up close.
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