Tests of sunglasses have found wide variations in their effectiveness against UV, regardless of cost, tint color, or lens material. Ignore the sales hype and look for the following voluntary industry labels. "Cosmetic" sunglasses block 70 percent of the sun's most damaging rays, "general purpose" shades block 95 percent, and "special purpose" glasses block 99 percent. "UV-400," another label you often see, supposedly means the sunglasses block 100 percent of UV. A lot of experts recommend glasses in the latter two categories, the special purpose in this case being that they may keep you from going blind.In other words, some expensive sunglasses are crappy, and some cheap ones are completley adequate from a UV standpoint. Judge 'em as they come.
All Cancer Council sunglasses meet the Australian Standard and have an eye protection factor of 10 (the highest rating in Australia).Available here.
Our adult range features Polaroid polarising lenses protecting against UVA and UVB radiation
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Monochromatic light focuses better in your eyes than polychromatic light. That's a fact of physics.
posted by Chocolate Pickle at 5:04 PM on July 21