We have reached the practical design limit.
There is still much more that can be done.
Too soon to tell.
Free Form + both side aspheric + Dual Progressive Surface + Individual + Eye/Head movement + Plastic index 1.8 , ABBE 40 , very strong for rimless frame = PALs for future = Retail price at 5,000 US$ net.
I believe that , we have more than 50,000 rich people around the world who would like to buy it more than 1 pair for 1 person.
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