Results 21 to 30 of about 12,436 (263)
Vision, 2019 The key determinants of the range of clear focus in pre-presbyopes and their relative contributions to the difference between subjective range of focus and objective accommodation assessments have not been previously quantified.
Sandeep K. Dhallu +7 more
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Can we always rely on Borish delayed test for latent hypermetropia?
Indian Journal of Ophthalmology. Case Reports, 2023 The term hyperopia refers to a refractive condition of the eye where parallel light rays from infinity focus behind the neurosensory retina, after refraction through the ocular media when accommodation is at rest.
Devanshi M Dalal, Shivani Mishra
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Effect of Illumination on Ocular Status Modifications Induced by Short-Term 3D TV Viewing
Neural Plasticity, 2017 Objectives. This study aimed to compare changes in ocular status after 3D TV viewing under three modes of illumination and thereby identify optimal illumination for 3D TV viewing. Methods.
Yuanyuan Chen +5 more
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Dynamic accommodation measurement using Purkinje reflections and machine learning
Scientific Reports, 2023 Quantifying eye movement is important for diagnosing various neurological and ocular diseases as well as AR/VR displays. We developed a simple setup for real-time dynamic gaze tracking and accommodation measurements based on Purkinje reflections, which ...
Faik Ozan Ozhan +3 more
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Influence of orthokeratology lenses on the state of accommodative function in children with myopia
Zaporožskij Medicinskij Žurnal, 2014 Aim. It was showed that optimal optical correction have positive effect on the accommodative apparatus of the myopic eye. Absolute and relative accommodation reserves, the nearest point of clear vision in 50 patients (100 eyes) with mild myopia was ...
T. E. Tsybulskaya
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Imaging Quality and Fatigue Quantification of Ocular Optical System
IEEE Access, 2020 Human eye is a special kind of optical system, and its imaging quality and fatigue level seem susceptible to the illumination. In this study we were sought to develop a novel method to quantify ocular fatigue more accurately, and to assess the influence ...
Jianqi Cai +4 more
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Indian Journal of Ophthalmology, 2022 Purpose: Methylphenidate hydrochloride, which blocks the reuptake mechanisms of dopamine and norepinephrine, is used in attention deficit hyperactivity disorder (ADHD) treatment. Methylphenidate has many general side effects including ocular findings. In
Pınar Bingöl-Kızıltunç +2 more
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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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Acceleration characteristics of human ocular accommodation
Vision Research, 2005 Position and velocity of accommodation are known to increase with stimulus magnitude, however, little is known about acceleration properties. We investigated three acceleration properties: peak acceleration, time-to-peak acceleration and total duration of acceleration to step changes in defocus.
Bharadwaj, Shrikant R. +1 more
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Ocular Autonomic Nervous System: An Update from Anatomy to Physiological Functions
Vision, 2022 The autonomic nervous system (ANS) confers neural control of the entire body, mainly through the sympathetic and parasympathetic nerves. Several studies have observed that the physiological functions of the eye (pupil size, lens accommodation, ocular ...
Feipeng Wu, Yin Zhao, Hong Zhang
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