Hello,

If your business primarily sells metal frames and your standard index is 1.56 what powers should you stock up to until you start with a 1.6, Poly or 1.67 index.

I was thinking 1.56 from -2.50 sphere until -0.75 cyl And start 1.6 from -2.75 and up

Using 1.56 Aspheric would it be better than using 1.6 in terms of thin and light weight.


What are your thoughts?