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English-Thai Dictionary

presbyopia

N สายตายาว  sai-ta-yao

 

Webster's 1913 Dictionary

PRESBYOPIA

PRESBYOPIA Pres `by *o "pi *a Etym: [NL. , from Gr. (Med. )

 

Defn: A defect of vision consequent upon advancing age. It is due to rigidity of the crystalline lens, which producepresbytia.

 

New American Oxford Dictionary

presbyopia

pres by o pi a |ˌprezbēˈōpēə, ˌpres- ˌprɛzbiˈoʊpiə | ▶noun farsightedness caused by loss of elasticity of the lens of the eye, occurring typically in middle and old age. DERIVATIVES pres by op ic |-ˈäpik |adjective ORIGIN late 18th cent.: modern Latin, from Greek presbus ‘old man ’ + ōps, ōp- ‘eye. ’

 

Oxford Dictionary

presbyopia

presbyopia |ˌprɛzbɪˈəʊpɪə | ▶noun [ mass noun ] long-sightedness caused by loss of elasticity of the lens of the eye, occurring typically in middle and old age. DERIVATIVES presbyopic |-ˈɒpɪk |adjective ORIGIN late 18th cent.: modern Latin, from Greek presbus ‘old man ’ + ōps, ōp- ‘eye ’.