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With extreme corrections it get harder to put that into anything other than flat lenses and a lot of sun glasses aren't that shape. I recently went through gett
by rtkwe 3y ago
With extreme corrections it get harder to put that into anything other than flat lenses and a lot of sun glasses aren't that shape. I recently went through getting perscription safety glasses and had to get special inserts to flatten out the lens profile to make my relatively minor -3.75 to -4 prescription. I was able to get some relatively normal Oakleys in my script for sunglasses though.
- mindslight 3y agoAlso you generally want sunglasses to be much wider and taller than prescription glasses, because otherwise you get too much light bleed around the sides. Making large lenses is when the thickness takes off, especially for nearsightedness where the thickness ends up at the edges of the lens.