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Presbyopia may not be serious
in near future
Presbyopia might not be a serious problem in the near future. This
condition causes a loss of flexibility of the eye's lens as people
age.
Optical scientists at the University of Arizona decided to take
on this issue. They now believe they can make one pair of glasses
that will do the work of two or three lenses. The scientists plan
to create lenses that change focus depending on where the person
looks.
One option being considered is using a range-finding system, much
like those found in a camera, to send electrical impulses that change
the way light focuses as it moves through different areas of each
lens. The lenses could be ready for use by 2005.
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