1.61 High Index 1.61 High-Index lenses bend light more efficiently and have thinner edges than lenses with the same prescription power made of conventional plastic material. They require less material, which reduces their overall weight.
What is the difference between 1.61 and 1.67 high 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.
Is 1.60 A high index?
Material Refractive Index Abbe
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1.60 1.60 42
Polycarbonate 1.59 32
Trivex 1.53 45
Standard Plastic 1.50 58
At what prescription should you get high index lenses?
A high-index lens may be recommended if your optical prescription is above 2.00 diopters. High-index lenses have a refractive index above 1.50— ranging from 1.53 to 1.74.2020-11-25
Is 1.61 A high index?
High-index lenses have good optical clarity, 100% UV protection, and excellent durability. They currently come in indices of 1.61, 1.67, and 1.74. All three lenses are made with similar materials, so the choice of index comes down to your prescription strength. A 1.61 high-index lens is best for +5.00/-7.00 or above.2021-02-09
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.