1.67 high-index lenses surpass in thinness and lightness when compared to 1.61 high-index lenses. It helps with eye distortion caused by stronger prescriptions and is ideal for individuals with an SPH correction between +/- 7.00 and +/- 9.00, and a CYL correction between +/- 3.25 and +/- 4.00.
What is the difference between 1.61 and 1.67 index lenses?
1.67 high-index lenses surpass in thinness and lightness when compared to 1.61 high-index lenses. It helps with eye distortion caused by stronger prescriptions and is ideal for individuals with an SPH correction between +/- 7.00 and +/- 9.00, and a CYL correction between +/- 3.25 and +/- 4.00.
Do thinner lenses make a difference?
With a thinner material in most cases wearers do not notice a difference. But this is highly dependent on how sensitive the wearer is. In some cases the wearer can spot the difference between a thinner lens and a standard lens material which is thicker.
What is the best lens index?
The 1.50 Standard Index lenses are the thickest lenses you can purchase for a typical pair of prescription glasses. These work best for prescriptions that fall between -3.00 and +3.00 and have superior clarity.