Whirly lollipop on orange background.

This deal caught our eye (sorry!) in part because we're at the age where reading glasses are sometimes helpful - small print, low light. Put simply Presbia (NASDAQ: LENS) makes a small microlens which is then inserted into a small "pocket" added to the eyeball with a conventional laser. The lens is only 3.2mm in diameter with an astonishing edge thickness of just 15 microns. The optics on top of the lens adjust light gathering and focus to aid either near or far vision.

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