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presbyopia |
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presbyopia a progressively diminishing ability of the eye to focus, noticeable from middle to old age, caused by loss of elasticity of the crystalline lens presbyopia [‚prez·bē′ō·pē·ə] (medicine) Diminished ability to focus the eye on near objects due to gradual loss of elasticity of the crystalline lens with age. 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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Key statement: Correction of eye refractive errors like presbyopia, hyperopia, myopia and astigmatism using either pre-tensioned or transcutaneously energized artificial muscle implants. But they also correct presbyopia, the declining ability to see things up close. The newly developed lens is "the only adaptive lens that is practical for presbyopia patients,' says biomedical and optical engineer Shuliang Jiao of the University of Miami (Fla. |
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