Results 11 to 20 of about 9,035 (308)

Ocular aberrations and wavefront aberrometry: A review

open access: yesAfrican Vision and Eye Health, 2015
Wavefront aberrations can be described as deviations of the wavefront exiting the eye froma reference wavefront that is aberration free and diffraction limited. Ocular aberrations canbe sub-categorised as lower and higher order aberrations.
Holly A. Unterhorst, Alan Rubin
doaj   +4 more sources

Wavefront aberrations and retinal image quality in different lenticular opacity types and densities. [PDF]

open access: yesSci Rep, 2017
To investigate wavefront aberrations in the entire eye and in the internal optics (lens) and retinal image qualities according to different lenticular opacity types and densities.
Wu CZ, Jin H, Shen ZN, Li YJ, Cui X.
europepmc   +3 more sources

Asymmetric wavefront aberrations and pupillary shapes induced by electrical stimulation of ciliary nerve in cats measured with compact wavefront aberrometer. [PDF]

open access: yesPLoS ONE, 2014
To investigate the changes in the wavefront aberrations and pupillary shape in response to electrical stimulation of the branches of the ciliary nerves in cats. Seven eyes of seven cats were studied under general anesthesia.
Suguru Miyagawa   +7 more
doaj   +2 more sources

Induced higher-order aberrations after laser in situ keratomileusis (LASIK) performed with wavefront-guided IntraLase femtosecond laser in moderate to high astigmatism [PDF]

open access: yesBMC Ophthalmology, 2016
Background\ud \ud Wavefront-guided Laser-assisted in situ keratomileusis (LASIK) is a widespread and effective surgical treatment for myopia and astigmatic correction but whether it induces higher-order aberrations remains controversial.
Osuagwu, Uchechukwu L. (R19382)   +2 more
core   +2 more sources

A Model-Based Approach for Measuring Wavefront Aberrations Using Random Ball Residual Compensation

open access: yesPhotonics, 2023
The projection objective lens holds a pivotal role in lithography, directly influencing imaging system quality and, consequently, the lithography machine’s feature dimensions.
Jianke Li   +6 more
doaj   +2 more sources

Analyzing the Dynamic Wavefront Aberrations in the Human Eye [PDF]

open access: yesIEEE Transactions on Biomedical Engineering, 2004
The optics of the human eye are not static in steady viewing conditions and exhibit microfluctuations. Previous methods used for analyzing dynamic changes in the eye's optics include simple Fourier-transform-based methods, which have been used in studies of the eye's accommodation response. However, dedicated tools for the analysis of dynamic wavefront
D. Robert Iskander   +3 more
openaire   +4 more sources

Higher-Order Wavefront Aberrations for Populations of Young Emmetropes and Myopes

open access: yesJournal of Optometry, 2009
Purpose: To test the hypothesis that human eyes have a central tendency to be free of higher-order aberrations by analyzing wavefront aberrations for two young populations of respectively emmetropic and myopic subjects.
Jinhua Bao   +5 more
doaj   +2 more sources

The effect of two different types of daily disposable monofocal contact lenses on ocular wavefront aberrations

open access: yesPhotodiagnosis and Photodynamic Therapy
Background: To compare the effect of two daily disposable soft contact lenses on ocular wavefront aberrations. Methods: This study included 34 eyes from 17 patients aged 18 to 40 years (mean age: 27.12±8.3 years) with identical myopic refractive errors ...
Konuralp Yakar
doaj   +2 more sources

Effect of Intraocular Lens Tilt and Decentration on Visual Acuity, Dysphotopsia and Wavefront Aberrations. [PDF]

open access: yesVision (Basel), 2020
Tilt and decentration of intraocular lenses (IOL) may occur secondary to a complicated cataract surgery or following an uneventful phacoemulsification.
Ashena Z   +3 more
europepmc   +2 more sources

Small Incision Lenticule Extraction (SMILE) for Moderate and High Myopia: Seven-Year Outcomes of Refraction, Corneal Tomography, and Wavefront Aberrations. [PDF]

open access: yesJ Ophthalmol, 2020
Purpose To investigate the long-term outcomes of refraction, corneal tomography, and wavefront aberrations after small incision lenticule extraction (SMILE) for moderate and high myopia. Methods Prospective, nonconsecutive case series.
Xia F   +5 more
europepmc   +2 more sources

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