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US07322695B2 Multifocal contact lenses 有权
多焦点隐形眼镜

Multifocal contact lenses
摘要:
The invention provides methods for correcting presbyopia and lenses for such correction in which production of a full range of multifocal lenses is accomplished using three rotationally symmetric, aspheric back surfaces, the design of which base curves is a function of refractive power.
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