3 ms·
I think those are high index lenses, not normal lenses. I might be wrong though.
by melony 4y ago
I think those are high index lenses, not normal lenses. I might be wrong though.
- lostlogin 4y agoI don’t think that changes how the effect works though, just reduces the thickness of the glasses. I’m very much not expert at this, I just help a child with poor eyesight, and every upgrade that reduces weight and thickness is much appreciated.