Spherical vs Aspherical Lenses - for Eyewear Glasses
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Spherical and aspherical lenses both have their respective pros and cons, as laid out in this video. Spherical lenses are, as the name explains, much more rounded, whereas aspherical lenses are much flatter. As prescriptions increase, aspherical lenses may become preferable over the spherical lenses that can cause unwanted magnifications (in plus lenses) and reductions (in minus lenses).
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Watch video Spherical vs Aspherical Lenses - for Eyewear Glasses online without registration, duration hours minute second in high quality. This video was added by user Visio-Rx 06 October 2011, don't forget to share it with your friends and acquaintances, it has been viewed on our site 83,20 once and liked it 27 people.