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Old 09-17-2009, 11:40 AM
Junior Member
 
Join Date: Aug 2009
Posts: 3
Default Why wear photochromic glasses?

They are just transition glasses, they automatically darken in the sunshine when you leave from indoors to outdoors, and they can avoid the need to carry prescription sunglasses, many people wear this kind of prescription sunglasses found them convenient, and today’s photochromic materials react quickly and fade quickly.
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