Aspherics in spectacle lenses
Keyword(s):
AbstractA review of the use of aspherics in the last decades, understood in a broad sense as encompassing single-vision lenses with conicoid surfaces and free-form and progressive addition lenses (PALs) as well, is provided. The appearance of conicoid surfaces to correct aphakia and later to provide thinner and more aesthetically appealing plus lenses and the introduction of PALs and free-form surfaces have shaped the advances in spectacle lenses in the last three decades. This document basically considers the main target optical aberrations, the idiosyncrasy of single lenses for correction of refractive errors and the restrictions and particularities of PAL design and their links to science vision and perception.
1992 ◽
Vol 58
(11)
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pp. 1886-1892
2000 ◽
Vol 123
(3)
◽
pp. 369-379
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Keyword(s):
2005 ◽
Vol 168
(3)
◽
pp. 408-413
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Keyword(s):