piety@hplabs.UUCP (Bob Piety) (06/05/84)
I recently read an article about premature vision degeneration due to UV
getting through ordinary sunglasses. The article recommended special
amber/yellow lenses that do not pass the UV.
A local sports shop had Ski-Optiks brand sunglasses that claimed to block UV
but cost $20 - $40 for plastic lenses.
Does anyone know:
1. Where to buy such glasses at a lower cost (or know of cheaper
brands?)
2. Do sunglasses with glass lenses block UV? Prescription
glasses/sunglasses?
Thanks in advance for any information on this subject.
Boblaman@sdcsvax.UUCP (Mike Laman) (06/08/84)
CNN did a small segment on this very subject recently. They said the
sun glasses would the percentage of ultraviolet light that they block.
I remember them mentioning that they found a couple pairs of Foster Grants
to block nearly all UL light. I remember one of the pairs they had tested
blocked 99.9%.
Mike Laman
UUCP: {ucbvax,philabs,sdccsu3,sdcsla}!sdcsvax!lamankfl@hoxna.UUCP (Kenton Lee) (06/08/84)
xxx Several brands of sunglasses provide 100% UV protection. Many others are still pretty good, providing 90%+. Most glass lenses provide IR protection, but very very few plastic lenses do. Plan to spend some bucks for something good, though. -- Kenton Lee, Bell Labs - WB wb3g!kfl or hoxna!kfl