Last Updated:2022/12/24

No aspheric cataract spectacle lens designer has ever given the slightest thought to this 4 to 6 diopters of over-plussing for peripheral vision which is responsible for tremendous peripheral distortion, worse peripheral swim, worse false orientation, worse magnification, severe concave curvature of field (The floor comes up at you), increased ring scotoma size and increase jack-in-the-box phenomenon (the horse-blinder effect) with unsafe walking and driving.

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