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presbyopia
[ prez-bee-oh-pee-uh, pres- ]
noun
, Ophthalmology.
- farsightedness due to ciliary muscle weakness and loss of elasticity in the crystalline lens.
presbyopia
/ ˌprɛzbɪˈəʊpɪə; ˌprɛzbɪˈɒpɪk /
noun
- a progressively diminishing ability of the eye to focus, noticeable from middle to old age, caused by loss of elasticity of the crystalline lens
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Derived Forms
- presbyopic, adjective
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Other Words From
- pres·by·op·ic [prez-bee-, op, -ik, pres-], adjective
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Word History and Origins
Origin of presbyopia1
1785–95; < Greek presby- (combining form of présbys old, old man) + -opia
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Word History and Origins
Origin of presbyopia1
C18: New Latin, from Greek presbus old man + ōps eye
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Example Sentences
Still another defect of vision is known as presbyopia or farsightedness due to old age.
From Project Gutenberg
"Old sight," known as presbyopia, is a common defect of vision in advancing years.
From Project Gutenberg
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