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KMID : 0896219950150010831
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Journal of Daegu Health College
1995 Volume.15 No. 1 p.831 ~ p.841
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Some Thoughts on Aspheric Single Vision Ophthalmic Lenses
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Seo Yong-Won
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Abstract
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While less obvious to many, the selection of flattened base curves from steeper spherical surface designs aid in reduction of the edge thickness of a minus lens. By combining this flatter basecurve with an aspheric surface, beneficial results can beachived. Selecting spherical base curves that depart significantly from the best form sphere designresults in significant degradation of off-azis optical performance unless aspheric surfaces are emploied.
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