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base curve |
Also found in: Acronyms, Wikipedia | 0.01 sec. |
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curve, base (BC) 1. The shallower principal meridian of a toroidal surface of a toric lens. The other meridian of the toroidal surface which has the maximum power is called the cross curve. 2. In a meniscus lens, the shallower of the two surfaces. 3. Of a range of lenses of different powers, a surface power common to all the lenses in that range. See periscopic lens; back optic zone radius. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Also, lens measurements such as power, diameter and base curve are included. 3 mm base curve, plus enhanced comfort via a smoother anterior surface. Mosaic(TM) lenses have a dynamic lens curvature, which closely conforms to the contours of the face with a "multi" base curve that varies from 3. |
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