Results 11 to 20 of about 825 (188)
Age-dependence of the optomechanical responses of ex vivo human lenses from India and the USA, and the force required to produce these in a lens stretcher: the similarity to in vivo disaccommodation [PDF]
Vision Research, 2011 The purpose of this study was to study the age-dependence of the optomechanical properties of human lenses during simulated disaccommodation in a mechanical lens stretcher, designed to determine accommodative forces as a function of stretch distance, to ...
R. Augusteyn +8 more
semanticscholar +2 more sources
The Magnetic Disaccommodation in Titanium Doped Magnetite [PDF]
Le Journal de Physique IV, 1997 The domain wall stabilization processes in titanium doped magnetite is investigated by means of disaccommodation techniques. The time evolution of the initial magnetic susceptibility after sample demagnetization is measured in temperature range 80 to 500 K for polycrystalline specimens with nominal composition, Fe3-xTixO4 ...
Bendimya, K. +4 more
openaire +3 more sources
DISACCOMMODATION OF PERMEABILITY IN MANGANESE-ZINC-TITANIUM FERRITES
Le Journal de Physique Colloques, 1971 The disaccommodation spectra of MnZnTi ferrites generally show only a single peak, at about — 30 °C, in the range — 50 to 120 °C. The amplitude of the peak is proportional to the number of localized ferrous ions, i. e. FeIITiIV pairs. The shift in the peak down from the usual 10 °C is due to a lowering of the activation energy from 0.85 to 0.7 eV, and ...
Knowles, J., Rankin, P.
openaire +2 more sources
Computer-animated model of accommodation and theory of reciprocal zonular action [PDF]
Clinical Ophthalmology, 2011 Daniel B Goldberg1,2 1Ophthalmology Department, Drexel College of Medicine, Philadelphia, PA, 2Eye Physicians, Little Silver, NJ, USA Abstract: This report presents a computer-animated model of the structures of accommodation based on new understanding ...
Goldberg DB
doaj +2 more sources
Disaccommodation in Sr-Doped YIG
Transactions of the Japan Institute of Metals, 1970 Hisatake, Keizo, Ohta, Keizo
openaire +4 more sources
, 2004 The garnet-perovskite transition is studied in this work with magnetic disaccommodation on polycrystalline Nd doped YIG samples Y3-xNdxFe5O12 (0 < x < 2.5). A very different behaviour with the sintering atmosphere is observed.
P. Hernández-Gómez +6 more
semanticscholar +2 more sources
Journal of Vision, 2023 The young crystalline lens changes its shape to focus targets at different distances, a capability (accommodation) that is lost with age. Quantifying crystalline lens morphology during accommodation and aging is essential for understanding basic ...
Eduardo Martínez-Enríquez +6 more
semanticscholar +1 more source
Wavefront sensing for objective assessment of vision therapy efficacy: Preliminary results [PDF]
EPJ Web of Conferences, 2023 The aim of this study was to use wavefront sensing to objectively evaluate the effects of vision therapy in subjects with insufficiency (AI) and infacility of accommodation (AINF). Aberrometry was performed with a Shack-Hartmann wavefront aberrometer for
Gomes Jessica +2 more
doaj +1 more source
Using a video‐based eye tracker to analyse the binocular near‐reflex dynamics response
Ophthalmic and Physiological Optics, Volume 43, Issue 6, Page 1540-1549, November 2023., 2023 Abstract Purpose This study presents a novel video‐based eye‐tracking system for analysing the dynamics of the binocular near‐reflex response. The system enables the simultaneous measurement of convergence, divergence and pupillary size during accommodation and disaccommodation to aid the comprehensive understanding of the three‐component near‐reflex ...
Julián Espinosa +3 more
wiley +1 more source
Real-time wavefront aberrometry in subjects with accommodative excess [PDF]
EPJ Web of Conferences, 2023 The purpose of this study was to use real-time wavefront aberrometry to detect accommodative excess (AE) and to analyse the optical quality of the eye in subjects with this dysfunction.
Gomes Jessica +2 more
doaj +1 more source