You may interest questions:
- Do reading glasses over the counter really have no prescription?
- Is it harmful not to wear glasses when I am nearsighted?
- What's the difference between polycarbonate lenses and Trivex Lenses?
- Are UV levels in the high mountain higher than in the lowland?
- Do sunglasses with 100% UV protection are much more expensive than other sunglasses?
- Can the eye doctor know the vision distortion is caused by astigmatism or cataracts?
- Why is Anti-reflective coating applied to the back surface of sunglass lenses?
- Do sunglasses in dark tinted color give more UV protection than the light color?
- Why does my vision go completely black for a few seconds?
- What should I apply when cleaning glasses with anti-reflective Lenses?