Inventor designs 'tunable' glasses to help one billion in Third World see - Telegraph

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Inventor designs 'tunable' glasses to help one billion in Third World see - Telegraph

A retired Oxford physics professor has developed "tuneable" glasses. The glasses consist of two tough transparent plastic layers between which a clear liquid is injected until the proper level of magnification is reached. Similarly, liquid can be removed to reduce the magnification, allowing the glasses to be tuned for the vision needs of each user. He hopes to distribute these glasses, which can be much cheaper than glass, reuseable, and easily adjusted for each user, to be distributed in countries like India where many people are unable to afford proper eyewear.