Results 11 to 20 of about 11,809 (193)
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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Mechanism of accommodation: A review of theoretical propositions
African Vision and Eye Health, 2015 Accommodation is the process by which the human eye changes its focus to see objects at varying distances from the eye. For nearly 300 years, scientists have investigated and presented various views on the mechanism of accommodation.
Godwin O. Ovenseri-Ogbomo +1 more
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Evaluation of ocular accommodation, convergence and fusional vergence changes during Ramadan [PDF]
Journal of Fasting and Health, 2013 Purpose: 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 and ...
Seyed Hosein Hoseini-Yazdi +3 more
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Journal of Optometry, 2009 Purpose: We studied the accuracy and precision of 32 objective wavefront methods for finding the amplitude of accommodation obtained in 180 eyes. Methods: Ocular accommodation was stimulated with 0.5 D steps in target vergence spanning the full range of ...
Norberto López-Gil +3 more
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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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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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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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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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