Results 221 to 230 of about 13,112 (253)
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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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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.
Jessica B. Ciralsky +2 more
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The Economic Impact of Presbyopia
Journal of Refractive Surgery, 2021Presbyopia is the world's number one cause of vision loss with more than 1 billion individuals affected globally. The total global costs associated with correcting near vision impairment due to uncorrected presbyopia have been estimated at $30.8 billion for a comprehensive eye care model.
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Ophthalmic and Physiological Optics, 1995
SummaryThe 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.
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SummaryThe 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.
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EXOPHORIA AT NEAR IN PRESBYOPIA
Optometry and Vision Science, 1975The exophoria at near working distances through a plus lens addition which exists in presbyopia was investigated in order to explain the paradoxical lack of asthenopic symptoms associated with this condition. Fixation disparity measurements indicate that the exophoria which is measured by the von Graefe technique does not exist under binocular ...
J. James Saladin, James E. Sheedy
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Surgical interventions for presbyopia
Cochrane Database of Systematic Reviews, 2023Objectives: This is a protocol for a Cochrane Review (intervention). The objectives are as follows:. The primary objective is to evaluate the effectiveness and safety of surgical interventions for people with presbyopia. The secondary objective is to produce a brief economic commentary, summarizing relevant economic evaluations that compare different ...
Alvarado-Villacorta, Rosa +4 more
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Surgical management of presbyopia
Contact Lens and Anterior Eye, 2004Presbyopia is age-related reduction in amplitude of accommodation and the loss of the ability to change the eye's focus from far to near. It is the one of the most common age-related ailment. Traditional methods such as spectacle glasses or contact lenses are still the most widely used for correction of the problem. This article is an attempt to review
Sunil Shah, Sanjay Mantry
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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
David Volk, Joseph W. Weinberg
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Optometry and Vision Science, 1982
Of the 800 presbyopes studied, 286 (35.75%) entered presbyopia at or before the age of 38 years. About 63% of these patients lived in rural areas and 37% in urban areas. Environmental conditions including high average temperature, much ultraviolet radiation, chronic deficiency of essential amino acids, and exposure to toxic factors, particularly hair ...
Jag At Ram, IS Jain, Amod Gupta
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Of the 800 presbyopes studied, 286 (35.75%) entered presbyopia at or before the age of 38 years. About 63% of these patients lived in rural areas and 37% in urban areas. Environmental conditions including high average temperature, much ultraviolet radiation, chronic deficiency of essential amino acids, and exposure to toxic factors, particularly hair ...
Jag At Ram, IS Jain, Amod Gupta
openaire +3 more sources