presbyopia
/ˌprezbɪˈəʊpɪə/noun
mass noun
- long-sightedness caused by loss of elasticity of the lens of the eye, occurring typically in middle and old age老花眼, 老视。
派生词
presbyopic
adjective词源
late 18th cent.: modern Latin， from Greek presbus 'old man'+ōps, ōp- 'eye'.