Please kindly note THESE ARE NOT READING GLASSES. They perform the opposite function! it is myopia lenses (7 strengths available:0,-1.0, -1.5,-2.0, -2.5, -3.0, -3.5)
photochromic Myopia Glasses -Tinted lenses - great for outdoor reading.Classic-shaped frames, look good on any face. In different weather ,the lens have change.