| 摘要 |
Methods and apparatus for lenses and glasses are provided in which a lens ( 10 ) is formed with a thickness of less than 5 millimeters without grinding, and has two viewing segments ( 12 and 14 ). The first viewing segment ( 12 ) has a magnification power to correct for effects of presbyopia for near range viewing, and the second viewing segment ( 14 ) has a magnification power to correct for effects of presbyopia for intermediate range viewing.
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