Where are you? If you're in Bangkok -- check out GRACE VISION -- small family business , with more than 10 years experience. Very reasonable. Just got myself a pair of glasses which ALSO CUT out Computer's blue light. So much more ease when working on the computer for long periods. Big diff! https://www.facebook.com/Grace-Vision-แว่นตาราคาเบาๆ-103432898803179
Call Karin 095 913 9092 (speaks English)