Originally Posted by
Tallboy
Degree of Asphericity used in the design, prism thinning, front curve, if add is on the front. It wasn't that much thinner than say a physio W3, but it was much thinner than an Autograph III or many IOT designs would have been. Seemed almost flat on the back, cut on a 5.25 base. For a +4.25 lens with a +2.00 add, that is impressive if along with that thinness comes superior optics.
The trick isn't making a lens thin, any jerk can do that, its making it thin that you can see out of - and then if you can see superbly? Well thats a thing of art in my opinion.
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