Saturday, May 31, 2014

Does lens thickness affect eye magnification or power of the lens does?

Does lens thickness affect eye magnification (that is, make eyes look smaller in case of nearsightedness/myopia, or look larger in case of farsightedness/hyperopia), or power of the lens? For example, will the eyes look closer to the normal size for a -7 prescription with a high index 1.74 double aspheric plastic lens as compared to a relatively less powerful high index lens?

Also, which frames are better for high prescriptions so as to reduce the lens thickness? Smaller or bigger? Rounder or extreme-shaped? Rimmed or rimless?

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