Corrective lenses can introduce blur, or correct blur

Corrective lenses can magnifier, introduce blur, or correct blur depending on the optical prescription.

Corrective lenses can magnifier, introduce blur, or correct blur depending on the optical prescription. However, because most people first encounter lenses as magnifying glasses, they naturally think of lenses as magnifiers. However, while corrective lenses do have a slight magnification or a reducing effect. This is an unintentional and usually undesirable side effect. Corrective lenses do not correct vision through magnification, but rather by improving vision by reducing blur.

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