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Registered
Join Date: Apr 2001
Location: Linn County, Oregon
Posts: 48,818
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One good thing about glass is that it's a built in UV filter...no need for that coating. Your corrective prescription has a lot to do with weight. If no prescription, the federal law on shatterresistance applies. Meaning that by law, there is a minimum lens thickness.
Second hand info gleaned from my opthalmologists office...
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"Now, to put a water-cooled engine in the rear and to have a radiator in the front, that's not very intelligent."
-Ferry Porsche (PANO, Oct. '73) (I, Paul D. have loved this quote since 1973. It will remain as long as I post here.)
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