Results 11 to 20 of about 314,600 (296)
A geometric model of ocular accommodation [PDF]
Vision Research, 2010 An exoteric geometric mechanics model of ocular accommodation is detailed to elucidate the main ideas of various ongoing modeling efforts. The present study derives solutions for the stretched state of the ocular lens as it might appear during accommodation by using simple geometric arguments and a volume constraint, rather than the more mathematically
Reilly, Matthew A., Ravi, Nathan
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Effect of accommodation on peripheral ocular aberrations
Journal of Vision, 2009 Changes in peripheral aberrations, particularly higher order aberrations, as a function of accommodation have received little attention. Wavefront aberrations were measured for the right eyes of 9 young adult emmetropes at 38 field positions in the central 42 x 32 degrees of the visual field. Subjects accommodated monocularly to targets at vergences of
Ankit, Mathur +2 more
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Sensory control of ocular accommodation
, 1988 The investigations described in this thesis have examined how, with particular reference to optical cues, the retinal image is analysed by the brain so as to generate the appropriate signals for controlling accommodation. This line of research involved behavioural studies on trained monkeys (Macaca mulatto), human psychophysical studies, mathematical ...
Flitcroft, D, Flitcroft, Daniel Ian
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Numerical modelling of ocular accommodation process [PDF]
, 2014 The ocular accommodation mechanism, as the main apparatus in the eye responsible for maintaining required vision quality when looking at objects at various distances to the eye, is one of the most vital mechanisms of the eye. Ocular accommodation is simultaneously a mechanical and an optical process and investigation of such a complex system requires ...
Mohammad Pour, Hooman
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Pharmacological and physiological manipulation of ocular accommodation [PDF]
The primary aim of this thesis was to investigate in-vivo changes to ocular morphology during ocular accommodation, with particular attention to ciliary muscle changes, using pharmacological agents and physiological stimuli.
Randhawa, Parminder
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The Effect of Accommodation on Peripheral Refraction under Two Illumination Conditions
Photonics, 2022 The clinical importance of peripheral refraction as a function of accommodation has become increasingly evident in the last years with special attention given to myopia control. Low order ocular aberrations were measured with a Hartmann–Shack aberrometer
Raquel van Ginkel +3 more
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Accommodative Exercises to Lower Intraocular Pressure
Journal of Ophthalmology, 2020 Purpose. This study investigated how a conscious change in ocular accommodation affects intraocular pressure (IOP) and ocular biometrics in healthy adult volunteers of different ages. Methods. Thirty-five healthy volunteers without ocular disease or past
Thomas J. Stokkermans +6 more
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On voluntary ocular accommodation [PDF]
Perception & Psychophysics, 1975 Young observers were challenged to induce a marked monocular accommodative response to a relatively weak accommodative stimulus by placing a-9 diopter contact lens on the eye. At first, observers could not produce the desired response, but with training, three of four subjects achieved criterion.
Robert R. Provine, Jay M. Enoch
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A covered eye fails to follow an object moving in depth
Scientific Reports, 2021 To clearly view approaching objects, the eyes rotate inward (vergence), and the intraocular lenses focus (accommodation). Current ocular control models assume both eyes are driven by unitary vergence and unitary accommodation commands that causally ...
Arvind Chandna +4 more
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Crystalline lens imaging during accommodation with a slit-scanning tomography system: preliminary results [PDF]
EPJ Web of Conferences, 2020 A slit-scanning tomography system previously developed in the Centre of Physics of University of Minho allows to capture images of the eye and posteriorly calculus of the biometric (thickness and curvature) and optical (wavefront aberrations) properties ...
Gomes Jessica, Franco Sandra
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