presbyopes

presbyopes
n. far-sighted person, person who can only see distant objects clearly

English contemporary dictionary. 2014.

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  • Hyperopia — Hypermetropia Classification and external resources ICD 10 H52.0 ICD 9 367.0 Hyperopia, also known as farsig …   Wikipedia

  • Presbyopia — is a condition where the eye exhibits a progressively diminished ability to focus on near objects with age. Presbyopia’s exact mechanisms are not known with certainty; the research evidence most strongly supports a loss of elasticity of the… …   Wikipedia

  • Adjustable focus — eyeglasses compensate for the effects of presbyopia, lack of focusing, by providing on demand clarity at any desired distance.Two approaches can be found in the literature: electro optical (often utilizing liquid crystals as the active medium)… …   Wikipedia

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