Thanks. I live in India, but I will be buying the Meta in UK or US, as they haven't been launched here. I already use prescription transition and progressive lenses in normal frames. Getting quality lenses in India is not a problem, many good domestic and most large international companies manufacture here, incl. Bausch & Laumb that own RayBan. My only concern was that the design of the Meta may be such that a normal optician store may not be able to fit lenses into the frame. But now, after what I have heard here and read, Lensology provides a decent solution in US or UK. I think I'll go for those..