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Definition of Presbyopia
1. Noun. A reduced ability to focus on near objects caused by loss of elasticity of the crystalline lens after age 45.
Generic synonyms: Farsightedness, Hypermetropia, Hypermetropy, Hyperopia, Longsightedness
Derivative terms: Presbyopic
Definition of Presbyopia
1. Noun. Inability of the eye, due to ageing, to focus on nearby objects; farsightedness ¹
¹ Source: wiktionary.com
Definition of Presbyopia
1. [n -S]
Lexicographical Neighbors of Presbyopia
Literary usage of Presbyopia
Below you will find example usage of this term as found in modern and/or classical literature:
1. On the Anomalies of Accommodation and Refraction of the Eye: With a by Franciscus Cornelis Donders (1864)
"Moreover, its etymology is in favour of applying a more extensive meaning to the
word presbyopia; indeed, since farsightedness occurs generally in old ..."
2. Refraction and how to refract: Including Sections on Optics, Retinoscopy by James Thorington (1907)
"There is no exact age limit as to when presbyopia shall begin, the advent of
presbyopia being controlled by the character of the ametropia and physical ..."
3. A Practical treatise on the diseases of the eye by William Mackenzie, Thomas Wharton Jones (1855)
"There can be no doubt that deficient refraction is the proximate cause of
presbyopia, and that it is intimately connected with the decline of life. ..."
4. Manual of the diseases of the eye: For Students and General Practitioners by Charles Henry May (1909)
"ANOMALIES OF ACCOMMODATION. UNDER this heading are included presbyopia, paralysis
of accommodation, and spasm of accommodation. presbyopia. ..."
5. Diseases and injuries of the eye: Their Medical and Surgical Treatment by George Lawson (1869)
"presbyopia. presbyopia or LONG SIGHT is one of the first of the legion of troubles
which ... In true presbyopia the near point is removed from the eye, ..."
6. The Medico-chirurgical Review by James Johnson, Henry James Johnson (1847)
"The complication of presbyopia with conjunctivitis has frequently given rise ...
Some of the Consequences of presbyopia.—Among these M. Sichel mentions (1) ..."
7. A Manual of the Diagnosis and Treatment of the Diseases of the Eye by Edward Jackson (1907)
"presbyopia. EVEN with the emmetropic eye, increasing rigidity of the crystalline
lens diminishes the power of focussing on the retina the divergent rays ..."
8. Special Pathology and Diagnostics: With Therapeutic Hints by Charles Godlove Raue (1882)
"This is presbyopia—a diminution of accommodation for near objects, ... In such
cases we should bear in mind that a rapid increase of presbyopia is also a ..."
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