Tuesday, July 29, 2008
I'm intrigued by the claims made by the vendors of so-called "pinhole glasses".
I'm aware that many of the more extravagant claims can no longer be made in the USA, because the FDA has ruled that there's insufficient medical evidence to prove them: but I've seen such claims in overseas publications and Web sites. I'm also aware of the dispute over the relative effectiveness of pinhole glasses - but some users of my acquaintance swear that they've helped them. Whom to believe?
I work at the computer for many hours a day, and use low-power reading glasses coated with an anti-glare substance to reduce eyestrain. I've read that these pinhole glasses are better, in that they drastically reduce the amount of glare reaching the eye, and can even help improve vision over time by forcing the eye to focus at the correct distance. However, all this is "hearsay" evidence.
If any reader has tried these things, and can report success, I'd be very interested (and grateful) for your feedback in the Comments to this post.