In hyperopes, non-aspheric correction vs aspheric correction magnification: Before using aspherics, hyperopes with non-aspheric correction were seeing the world ____% larger and with aspherics will now see the world ____% larger.

• A. 15%, 3%
• B. 20%, 5%
• C. 25%, 6%
• D. 10%, 2%

Answer: (B)

Spectacle magnification in hyperopes depends on the design of the correcting lenses. When a hyperope wears standard spherical plus lenses, the magnification of the scene is relatively high because the lenses increase the angular size of objects as they enter the eye, making the world appear larger than unaided. Aspheric corrections change the lens shape so the power is spread more gradually and the edge effects—and thus the extreme magnification and distortion—are reduced. This smooth distribution of power lowers the overall enlargement of the viewed scene. So, with non-aspheric correction the world is seen about 20% larger, and with aspheric correction it’s reduced to about 5% larger. This reduction helps create a more natural sense of size and reduces peripheral distortion while preserving visual acuity.