Results 51 to 60 of about 1,168 (112)

Assessing neophyte response to daily disposable silicone hydrogel contact lenses: A randomised clinical trial investigation over one month

open access: yesOphthalmic and Physiological Optics, Volume 44, Issue 5, Page 876-883, July 2024.
Abstract Objective This randomised clinical trial assessed the impact on symptoms, tear film dynamics and ocular surface integrity of daily disposable silicone‐hydrogel contact lenses (CLs) over a month, paying special attention to lid wiper epitheliopathy (LWE) and its implications for CL discomfort.
Jacobo Garcia‐Queiruga   +5 more
wiley   +1 more source

Improvement of Retinal Images Affected by Cataracts

open access: yesPhotonics, 2022
Eye fundus images are used in clinical diagnosis for the detection and assessment of retinal disorders. When retinal images are degraded by scattering due to opacities of the eye tissues, the precise detection of abnormalities is complicated depending on
Enrique Gonzalez-Amador   +5 more
doaj   +1 more source

Phase-Shifting Common-Path Polarization Self-Interferometry for Evaluating the Reconstruction of Holograms Displayed on a Phase-Only Display

open access: yesFrontiers in Physics, 2022
In this work we apply a phase-shifting interferometry (PSI) to evaluate the reconstruction of complex-valued holograms displayed onto a phase-only spatial light modulator (SLM).
Esther Nabadda   +5 more
doaj   +1 more source

Influencia de la visión en el rendimiento académico en estudiantes universitarios

open access: yesRevista Mexicana de Oftalmología
Introducción: El sistema visual desempeña un papel fundamental en el rendimiento académico, especialmente en entornos de educación superior donde las demandas en habilidades visuales son significativas.
Clara Martínez-Pérez   +5 more
doaj   +1 more source

Plasmonic Sensors Based on Doubly-Deposited Tapered Optical Fibers

open access: yesSensors, 2014
A review of the surface plasmon resonance (SPR) transducers based on tapered fibers that have been developed in the last years is presented. The devices have proved their good performance (specifically, in terms of sensitivity) and their versatility and ...
Agustín González-Cano   +3 more
doaj   +1 more source

Amyotrophic Lateral Sclerosis: A Neurodegenerative Motor Neuron Disease With Ocular Involvement

open access: yesFrontiers in Neuroscience, 2020
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease that causes degeneration of the lower and upper motor neurons and is the most prevalent motor neuron disease.
Pilar Rojas   +20 more
doaj   +1 more source

Estudio observacional del ojo seco en una farmacia comunitaria

open access: yesFarmacéuticos Comunitarios, 2015
Introducción: El síndrome de ojo seco (SOS) afecta a cinco millones de personas en España y a sesenta millones en todo el mundo, acarreando importantes costes y afectando a actividades diversas.
Espinosa-Estévez A   +1 more
doaj   +1 more source

Optical Characterization of a Rotationally Asymmetric Refractive Multifocal Intraocular Lens Compared to a Standard Monofocal One

open access: yesApplied Sciences
This study compares a standard monofocal intraocular lens (IOL) with two rotationally asymmetric refractive multifocal IOLs, analyzing power profiles and wavefront data across three nominal powers. Tested IOLs included monofocal Acunex AN6 and multifocal
César Albarrán-Diego   +3 more
doaj   +1 more source

Influence of different types of astigmatism on visual acuity

open access: yesJournal of Optometry, 2017
Purpose: To investigate the change in visual acuity (VA) produced by different types of astigmatism (on the basis of the refractive power and position of the principal meridians) on normal accommodating eyes. Methods: The lens induced method was employed
Laura Remón   +2 more
doaj   +1 more source

Beta2 adrenergic receptor silencing change intraocular pressure in New Zealand rabbits

open access: yesJournal of Optometry, 2018
Purpose/aim: Glaucoma consists of a group of progressive optic neuropathies that are characterized by degeneration of the optic nerve and irreversible visual filed loss.
Patricia Loma   +3 more
doaj   +1 more source

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