Pinholes for Pinheads

August 12, 2008 at 7:39 am | Posted in Consumer Issues, health care, Miscellaneous | 1 Comment
Tags: , , ,

I received an email through my contact form, from a woman who offered to send me her product free of charge if I would write a review of her product. I can see why she would choose my blog since. as you may notice, its central theme is product reviews. Not too mention, through my writing, I come off as a wide eyed, gullible, innocent that will believe anything.

She sent a link (I won’t print) to her website that sells pinhole glasses. Her site, like many others, claims these glasses will, not correct, but cure all sorts of vision problems. For my amusement, and to avoid doing something more important that I didn’t really want to do…I did a little research. I replied to the above mentioned request that no free product would be necessary and I would review her product out of the goodness of my heart. Here is what I found:

‘Several entrepreneurs have marketed “pyramid” or “pinhole” glasses
consisting of opaque material with multiple slits or perforations. The
“technology” involved has been known for centuries and was used before
glass lenses were invented. Light passing through a small hole (or
holes) is restricted to rays coming straight from the viewed object;
these rays do not need focusing to bring them to a point. Modern
promoters claim their products are better than conventional lenses.
Actually, both reduce the focus effort needed to read, but pinhole
glasses are much less useful because they restrict contrast,
brightness, and the field of view [28]. Worn as sunglasses, they can
even be harmful because the holes allow damaging ultraviolet rays to
reach the eye.’

The citation #28 refers to an article in the Journal of the American
Optometric Association. Though the full-text isn’t available online,
a MEDLINE abstract/citation can be found here, with the full article
likely available at a local medical university library:

From the FTC (Federal Trade Commission):
‘The FTC alleged that, among other things, the defendants represented
that the pinhole glasses could correct vision disorders and
permanently cure a wide range of vision deficiencies, including
farsightedness, nearsightedness and astigmatism. In two separate
settlements, the defendants would be prohibited in the future from
making the alleged false claims or engaging in the practices
challenged by the FTC . . . This is the fifth FTC case challenging
claims for pinhole eyeglasses . . . In fact, the FTC complaint
alleges, contrary to the defendants’ representations, that:
— the use of pinhole eyeglasses does not result in long-
term improvement in these vision problems;
— pinhole eyeglasses do not cure, correct or ameliorate
specific vision problems;
— pinhole eyeglasses are not an adequate substitute for
prescription lenses or contact lenses;
— the efficacy of pinhole eyeglasses in improving vision
has not been proven by scientific research;
— pinhole eyeglasses do not eliminate the need for
professional diagnosis and treatment of vision


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  1. […] Original post by honjii […]

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