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Ophthalmic and Physiological Optics, 1995 Summary The mechanism of accommodation has been studied for at least four hundred years. The most interesting aspect of accommodation is that its time course is well in advance of other physiological functions – it begins to decline by adolescence and is lost about two‐thirds of the way through the normal line span.
David A. Atchison, Atchison, David A.
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Pharmacological Treatment in Presbyopia
Journal of Clinical Medicine, 2022 Pharmacological treatment of presbyopia may be an alternative for those who want a spectacle-free scenario and an easy-to-use method with lower risk of irreversible ocular adverse events.
Andrzej Grzybowski +2 more
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Progress in Retinal and Eye Research, 2005
Accommodation in humans refers to the ability of the lens to change shape in order to bring near objects into focus. Accommodative loss begins during childhood, with symptomatic presbyopia, or presbyopia that affects one's day to day activities, striking during midlife. While symptomatic presbyopia has traditionally been treated with reading glasses or
Susan A, Strenk +2 more
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Accommodation in humans refers to the ability of the lens to change shape in order to bring near objects into focus. Accommodative loss begins during childhood, with symptomatic presbyopia, or presbyopia that affects one's day to day activities, striking during midlife. While symptomatic presbyopia has traditionally been treated with reading glasses or
Susan A, Strenk +2 more
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Journal of Neuro-Ophthalmology, 2010
Loss of accommodation amplitude during eating (prandial presbyopia) is a rare phenomenon that has been reported in only 1 patient who had had head trauma. We report 2 patients who had not had head trauma and whose accommodative amplitudes, measured by dynamic retinoscopy, became markedly diminished within 1 minute of starting a meal and did not recover
Allon, Barsam +3 more
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Loss of accommodation amplitude during eating (prandial presbyopia) is a rare phenomenon that has been reported in only 1 patient who had had head trauma. We report 2 patients who had not had head trauma and whose accommodative amplitudes, measured by dynamic retinoscopy, became markedly diminished within 1 minute of starting a meal and did not recover
Allon, Barsam +3 more
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Pharmacological Treatments for Presbyopia
Drugs & Aging, 2023Accommodation is the change in dioptric power of the eye. It is a dynamic process that allows focusing on an object at all distances. In order to focus sharply, three physiological responses, known as the triad of accommodation, are produced by a change in pupil size, a change in shape and position of the lens, and ocular convergence. This is modulated
Betina Orman, Giovanna Benozzi
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BCLA CLEAR presbyopia: Mechanism and optics [PDF]
Contact Lens and Anterior EyeWith over a billion adults worldwide currently affected, presbyopia remains a ubiquitous, global problem. Despite over a century of study, the precise mechanism of ocular accommodation and presbyopia progression remains a topic of debate.
Davies, Leon N. +12 more
exaly +2 more sources
Revisiting monovision for presbyopia
Current Opinion in Ophthalmology, 2018Presbyopia is an inevitable age-related loss of accommodation that results in spectacle dependence with common everyday near-vision tasks. Many surgical approaches to presbyopic correction have been investigated, with monovision correction being amongst the most common and attractive options.
Abdallah, Mahrous +2 more
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The Omnifocal Lens for Presbyopia
Archives of Ophthalmology, 1962The relief of presbyopia with single-vision reading glasses, bifocals, and trifocals has obvious disadvantages. Reading glasses, while very effective for a limited range of distances about the near work position, cause progressive blurring with increasing distance of observation beyond that range. Bifocals and trifocals enable the wearer to see clearly
D, VOLK, J W, WEINBERG
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Pennsylvania medicine, 1997
The need for bifocals causes more angst, fear, depression, denial, searching for alternatives, and needless self-pity than any other benign intervention in all of medicine. To many, this is the first sign they are on the other side of the hill of life.
S L, Glass, J, Mucciola
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The need for bifocals causes more angst, fear, depression, denial, searching for alternatives, and needless self-pity than any other benign intervention in all of medicine. To many, this is the first sign they are on the other side of the hill of life.
S L, Glass, J, Mucciola
openaire +1 more source
2019
Presbyopia is primarily an inevitable, age-related condition and accordingly its prevalence in a given population is related to the percentage of individuals surviving to old age. By the year 2020 the worldwide prevalence is expected to rise to 1.37 billion.
Tandara, Lea +2 more
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Presbyopia is primarily an inevitable, age-related condition and accordingly its prevalence in a given population is related to the percentage of individuals surviving to old age. By the year 2020 the worldwide prevalence is expected to rise to 1.37 billion.
Tandara, Lea +2 more
openaire