Originally Posted by
Darryl Meister
Minimizing the vertex distance will have the greatest influence on minification in this case. You can do this through proper frame selection and adjustment. While edging the lenses, using a guided mini-bevel positioned near the front of the lens will also reduce the vertex distance.
Increasing the base (front) curve will reduce minification but, since this generally increases the vertex distance, the net change in magnification isn't necessarily affected much when manipulating the base curve of minus lenses.
Keeping the size of the lens small through proper frame selection will also help a great deal in minimizing how conspicuous the lenses are. In addition to reducing lens thickness and the appearance of the reflections of the lens edge, this also reduces the area of the face seen through the lens aperture by an observer, so you will see less of the face minified through the lens.
Reducing the visibility of the edges by decreasing thickness (using high-index or rolled edges) or by applying edge treatments (such as light tints or edge polishing) will also reduce the "coke bottle" effect and the appearance of those "power ring" reflections, which are created by internal reflections of the lens edge.
Best regards,
Darryl
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