ON THE CUTTING EDGE: These Glasses Are So Good You’ll Really Be Able To See How Ugly They Are
Not all people with presbyopia - age-related far-sightedness that makes it difficult if not impossible to read a magazine or medicine bottle label – can adjust to bifocal or progressive lenses which combine lenses for near, intermediate and distance vision, depending on whether you look straight ahead or down. A new type of glasses, TruFocals, allows the wearer to manually adjust the entire lens for one type of vision at a time, reports The Wall Street Journal:
The glasses contain two lenses - a normal distance prescription on the outside and behind it, a flexible plastic lens filled with a clear optical fluid. As the user moves the slider the pressure on the fluid changes, altering its shape. When the slider is at the far left, reading magnification is off and distance vision is optimized. As it is moved to the right, reading magnification increases.
TruFocals cost $895 on the Web with a 30-day free trial, and are also available from a small number of optometrists. So far, there are no published clinical trials on the glasses. Optometrists who have seen them give them high reviews on function, but they also say many clients won't like the Harry Potter-like frames.
Well, tax chiseler and former Sen. Tom Daschle (D-SD) would wear them (last item).
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