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National Pollen and Aerobiology Research Unit : Annual Research and Knowledge Transfer Report 2007 - 2008 [PDF]
Emberlin, Jean
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Ocular Accommodation in Human Infants
Optometry and Vision Science, 1983The present longitudinal investigation evaluated the proficiency of the human ocular accommodation system during the 20-week period after birth. Fourteen human infants were tested at specific intervals during the age of 2 through 20 weeks. At each age the refractive state of the eyes during fixation of a vertical-striped, high-contrast stimulus pattern
K. Brookman
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Evaluation of ocular accommodation, convergence and fusional vergence changes during Ramadan [PDF]
Journal of Fasting and Health, 2013 Introduction: There are a few researches regarding the effects of Islamic fasting on visual system. The aim of this study was to investigate the effects of Ramadan fasting on the amplitude of accommodation (AA), near point of convergence (NPC), positive ...
Seyed Hosein Hoseini-Yazdi +3 more
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Perceptual detectability of ocular accommodation microfluctuations
Journal of the Optical Society of America A, 1989When the eye fixates a stationary stimulus, the power of the lens is known to change rapidly and continuously. Although the basic characteristics of this fluctuating activity are known and the influencing factors have been identified, their exact role in the control of accommodation is uncertain. It is thought that, for the fluctuations to be useful, a
W N Charman +4 more
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Ocular Accommodation, Personality, and Autonomic Balance
Optometry and Vision Science, 1983The autonomic nervous system is made up of two subsystems: the parasympathetic (PNS) and the sympathetic (SNS). The balance between these systems regulates bodily functions during routine (PNS-dominant) and crisis (SNS-dominant) situations. It may also control visual accommodation: PNS activation for inward focus, and SNS activation for outward focus ...
V. Gawron
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Autonomic correlates of ocular accommodation and cardiovascular function
Ophthalmic and Physiological Optics, 2009AbstractPurpose: To evaluate the hypothesis that objective measures of open‐ and closed‐loop ocular accommodation are related to systemic cardiovascular function, and ipso facto autonomic nervous system activity.Methods: Sixty subjects (29 male; 31 female) varying in age from 18 to 33 years (average: 20.3 ± 2.9 years) with a range of refractive ...
James S. Wolffsohn +2 more
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Arterial pulse modulates steady-state ocular accommodation
Current Eye Research, 1990Rapid and continuous fluctuations in ocular focus are known to occur when the eye views a stationary target. The advent of high-speed infra-red optometers has established that these microfluctuations of ocular accommodation have two dominant components: low frequency of less than 0.6 Hz and high frequency between 1.0-2.3Hz.
Bernard Gilmartin +3 more
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Accommodative response to ocular surface pain
Clinical and Experimental Optometry, 2021The discovery of an accommodative response to ocular surface stimulation could inform clinicians and patients that optical effects may occur due to ocular discomfort and perhaps an assessment of the accommodative system after carrying out interventions impacting the ocular surface, may be warranted.There have been no previous reports evaluating the ...
Emmanuel B Alabi, Trefford L Simpson
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Changes of ocular aberration with accommodation
American Journal of Ophthalmology, 2002To study the effect of accommodation on ocular aberrations.Observational case series.The ocular aberrations in 33 eyes of 33 young adults were measured with a Hartmann-Shack wavefront aberrometer before and during 3 diopters of accommodation.The root mean square values of wavefront error did not change for a 4-mm and a 6-mm zone; however, spherical ...
Sayuri Ninomiya +7 more
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