Compared to conventional lenses, GP lenses have a higher or lower refractive index?

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Multiple Choice

Compared to conventional lenses, GP lenses have a higher or lower refractive index?

Explanation:
GP lenses use rigid polymers that include silicone components, which raise the refractive index compared with traditional hydrogel soft lenses. Hydrogels rely more on water content, which lowers their optical index. A higher refractive index means light is bent more efficiently by the same thickness, contributing to accurate vision with the rigid GP design. Therefore, gas-permeable lenses have a higher refractive index than conventional lenses.

GP lenses use rigid polymers that include silicone components, which raise the refractive index compared with traditional hydrogel soft lenses. Hydrogels rely more on water content, which lowers their optical index. A higher refractive index means light is bent more efficiently by the same thickness, contributing to accurate vision with the rigid GP design. Therefore, gas-permeable lenses have a higher refractive index than conventional lenses.

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