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 (prĕz′bē-ō′pē-ə, prĕs′-)
Inability of the eye to focus sharply on nearby objects, resulting from loss of elasticity of the crystalline lens with advancing age.

[New Latin : Greek presbus, old man; see per in Indo-European roots + -opia.]

pres′by·op′ic (-ŏp′ĭk, -ō′pĭk) adj.


(ˌprɛzbɪˈəʊpɪə) or


(Pathology) a progressively diminishing ability of the eye to focus, noticeable from middle to old age, caused by loss of elasticity of the crystalline lens
[C18: New Latin, from Greek presbus old man + ōps eye]
presbyopic adj


(ˌprɛz biˈoʊ pi ə, ˌprɛs-)

farsightedness due to ciliary muscle weakness and loss of elasticity in the crystalline lens, usu. associated with aging.
[1785–95; < Greek presby- (comb. form of présbys old, old man) + -opia]
pres`by•op′ic (-ˈɒp ɪk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.presbyopia - a reduced ability to focus on near objects caused by loss of elasticity of the crystalline lens after age 45
hypermetropia, hypermetropy, hyperopia, longsightedness, farsightedness - abnormal condition in which vision for distant objects is better than for near objects


n presbicia, vista cansada (fam)
References in periodicals archive ?
M2 PHARMA-March 5, 2018-Allotex Completes Financing for Presbyopia Clinical Trials
As with many aging adults, you have presbyopia, and if you're like many with presbyopia, you're aggravated by it.
And presbyopia, the loss of near vision due to age, starts to affect all of us, starting at around 40 years of age.
Switzerland-based Novartis has agreed to acquire Encore Vision, a privately-held firm in Fort Worth, Texas, US engaged in the development of a novel treatment in presbyopia, it was reported yesterday.
Alcon, the global leader in eye care and a division of Novartis, introduces Dailies Total1 Multifocal contact lenses for people with presbyopia.
Safilens has launched its new monthly silicone hydrogel contact lens for presbyopia called Open 30 Presbyo.
INTRODUCTION: Presbyopia is the age related loss of ability to comfortably sustain the accommodation necessary for clear near vision.
Simple reading glasses with convex lenses are used to correct presbyopia.
assemble 35 chapters by a group of ophthalmologists and optometrists from Europe, North America, Australia, and Brazil who summarize current views on the physiology of accommodation and age-based changes that lead to presbyopia.
Signs that you may be affected by presbyopia include finding it difficult to focus, blurred vision at normal reading distance and eye fatigue along with headaches when carrying out close work.
The researchers were studying presbyopia - the loss of near vision that occurs with age.
The new evidence was found by a team of researchers who performed a meta-analysis using nine cross-sectional studies to compare the prevalence and magnitude of presbyopia, commonly described as the loss of near vision that occurs with age, among men and women.