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polycarbonate lenses protect the eyes - polycarbonate lenses

by:Cailong     2019-08-23
polycarbonate lenses protect the eyes  -  polycarbonate lenses
1991 this is a digital version of an article from The Times Print Archive, before it starts online in 1996.
To keep these articles as they appear initially, the Times will not change, edit, or update them.
There are occasional copywriting errors or other problems during the digitization process.
Please send a report of such issues to archid_feedback @ nytimes. com.
To the editor: The information you give to the consumer on the glasses (
It's another climax.
Innovation in science and technology: shake and shake glasses ", Consumer World page, July 13)
No mention of the most important consideration for buying glasses-eye safety.
Glass Lenses and plain plastic lenses do not provide adequate eye protection for active people.
Children are particularly vulnerable to serious eye injuries, are vulnerable to broken lenses at the time of impact, and are also vulnerable to lenses that fail to adequately protect their eyes from damage.
All lenses specified for children shall be made of polyester (
A material that is almost indestructible)
The center thickness is at least 2mm.
These lenses may add $20 to $30 to the cost of the glasses, but are well worth the extra protection.
One of the functions should also use polycarbonate lenses
Eyes, losing who better eyes can cause serious damage (
Unable to drive, for example);
If the eye is hit, the person whose condition of the eye may deteriorate (
Thin Retina, bleeding tendency)
, And those who work where there is a risk of flying particles. DAVID REESE, M. D.
Director of pediatric ophthalmology services at the University of taftz, Boston, on July 14, 1991, a version of the letter appeared on page 1001018 of the national edition of August 3, 1991, titled: Polycarbonate lenses protect the eyes.
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