单词 | presbyopia |
释义 | presbyopian. Ophthalmology. Deterioration of near vision occurring with advancing age, owing to increasing rigidity of the lens of the eye with reduction in the power of accommodation. ΘΚΠ the world > health and disease > ill health > a disease > disorders of eye > disordered vision > [noun] > long-sightedness presbytia1654 long sight1737 longsightedness1748 presbyopia1767 far-sightedness1846 presbyopy1862 presbytism1863 hypermetropia1868 hyperopia1886 1767 G. Cleghorn Index Ann. Course Lect. 34 The cause of myopia, presbyopia, nyctalopia, hemeralopia and cataract. 1793 Philos. Trans. (Royal Soc.) 83 178 The central part of the crystalline becomes rigid by age, and this is sufficient to account for presbyopia. 1822 J. M. Good Study Med. III. 207 The third variety or that produced by old age, constitutes the presbytia, and presbyopia of medical writers. 1869 G. Lawson Dis. Eye (1874) 233 Presbyopia or Long Sight is one of the first of the legion of troubles which advancing years bring upon all of us. 1935 Evening Sun (Baltimore) 23 Apr. 1/6 If this aging process, called presbyopia or ‘old sightedness’, occurs early, the individual's normal span of life is comparatively short. 1994 Amer. Health Sept. 55/2 Nonprescription reading glasses are a good option if your only problem is presbyopia. This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022). < |
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