Spheric contact lenses
Spherical and aspheric refer to the design of the contact lenses’ surface. Spherical lenses are uniformly curved, while aspheric lenses provide a gradient change of curvature across the surface. Spherical lenses are generally used to correct basic cases of near and farsightedness, and toric and multifocal lenses usually feature an aspheric surface. Both of these lenses are made of silicone or silicone hydrogel to provide optimum comfort and visual sharpness.
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