I bought these lenses and replaced them with my original Frogskinz lenses and quickly found that they were very poor quality. The lenses are cheap, they made me dizzy very quickly. I have 20/20 prescription and have never had any problems with the original lenses that came with the Frogskinz glasses. I wouldn't recommend buying these if you're looking for clear vision. I removed these lenses from the frame and put back the old scratched lenses as you can see much clearer through them than through them.