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A typical laminated makeup would be 3 mm glass / 0.38 mm interlayer / 3 mm glass. This gives a final product that would be referred to as 6.38 laminated glass.
Astigmatism is quite common. Studies have shown that about one in three people suffers from it.The prevalence of astigmatism increases with age. Although a person may not notice mild astigmatism, higher amounts of astigmatism may cause blurry vision, squinting, asthenopia, fatigue, or headaches.
So why do I see three red lights when there is really only one?
Quote from: Geezer on 11/12/2009 22:37:24So why do I see three red lights when there is really only one?You've got light hitting your retinas all funny, so there are 3 lights instead of one [attachment=10831]http://en.wikipedia.org/wiki/File:Myopia.svg
I should try to repeat the "experiment" but my eyes may have changed in the meantime.
I didn't mean that kind of shot...