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Table of Contents -- Presbyopia POS
HYPHEN
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY
ROGET THESAURUS

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Presbyopia

POS

Noun

HYPHEN

pres=by=o=pi=a

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WORDNET DICTIONARY

Noun Presbyopia has 1 sense

presbyopia(n = noun.state) farsightedness - a reduced ability to focus on near objects caused by loss of elasticity of the crystalline lens after age 45;

is a kind of farsightedness, hypermetropia, hypermetropy, hyperopia, longsightedness

Derived form adjective presbyopic₁

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CIDE DICTIONARY

Presbyopia, [NL., from Gr. old, n., an old man + , , the eye.].

A defect of vision consequent upon advancing age. It is due to rigidity of the crystalline lens, which produces difficulty of accommodation and recession of the near point of vision, so that objects very near the eyes can not be seen distinctly without the use of convex glasses. Called also presbytia. [1913 Webster]

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OXFORD DICTIONARY

Presbyopia, n. long-sightedness caused by loss of elasticity of the eye lens, occurring esp. in middle and old age.

Derivative

presbyopic adj.

Etymology

mod.L f. Gk presbus old man + ops opos eye

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ROGET THESAURUS

Presbyopia

Dimsightedness

N dimsightedness, dim sight, dull sight half sight, short sight, near sight, long sight, double sight, astigmatic sight, failing sight, dimsightedness, purblindness, lippitude, myopia, presbyopia, confusion of vision, astigmatism, color blindness, chromato pseudo blepsis, Daltonism, nyctalopia, strabismus, strabism, squint, blearedness, day blindness, hemeralopia, nystagmus, xanthocyanopia, xanthopsia, cast in the eye, swivel eye, goggle-eyes, obliquity of vision, winking, nictitation, blinkard, albino, dizziness, swimming, scotomy, cataract, ophthalmia, blinker, screen, deceptio visus, refraction, distortion, illusion, false light, anamorphosis, virtual image, spectrum, mirage, looming, phasma, phantasm, phantasma, phantom, vision, specter, apparition, ghost, ignis fatuus, specter of the Brocken, magic mirror, magic lantern, mirror lens, dim-sighted, myopic, presbyopic, astigmatic, moon-eyed, mope-eyed, blear-eyed, goggle-eyed, gooseberry-eyed, one-eyed, blind of one eye, monoculous, half-blind, purblind, cock-eyed, dim-eyed, mole- eyed, dichroic, blind as a bat, winking.