Results 1 to 10 of about 728 (215)

Microfluctuations of wavefront aberrations of the eye [PDF]

open access: yesOphthalmic and Physiological Optics, 2004
Abstract To investigate fluctuations in the wavefront aberrations of the eye and their relation to pulse and respiration frequencies we used a wavefront sensor to measure the dynamics of the Zernike aberrations up to the polynomial fourth radial order.
Michael J Collins, D Robert Iskander
exaly   +4 more sources

Optical Aberrations and Wavefront

open access: yesTürk Oftalmoloji Dergisi, 2014
The deviation of light to create normal retinal image in the optical system is called aberration. Aberrations are divided two subgroup: low-order aberrations (defocus: spherical and cylindrical refractive errors) and high-order aberrations (coma ...
Nihat Polat   +2 more
doaj   +2 more sources

Evaluations of wavefront aberrations and corneal surface regularity in dry eye patients measured with OPD Scan III [PDF]

open access: yesInternational Journal of Ophthalmology, 2022
AIM: To compare the wavefront aberrations and corneal surface regularity between dry eye (DE) patients and normal subjects and assess its diagnostic performance for DE measured with OPD Scan-III.
Rong-Jun Liu   +4 more
doaj   +1 more source

Impact of Pupil Aberrations on Wavefront Manipulation [PDF]

open access: yesEPJ Web of Conferences, 2021
A systematic and quantitative analysis is given of the impact of pupil aberrations on the imaging performance in wavefront manipulation applications using adaptive optical elements.
Nobis Thomas
doaj   +1 more source

Restoration of images with wavefront aberrations [PDF]

open access: yes2016 23rd International Conference on Pattern Recognition (ICPR), 2016
To appear in the proceedings of the 23rd International Conference on Pattern Recognition (ICPR 2016)
Claudius Zelenka, Reinhard Koch
openaire   +3 more sources

Modern approaches to cataract surgery with high visual acuity based on wavefront analysis

open access: yesОфтальмохирургия, 2023
Relevance. Until recently, visual acuity was the main criterion for determining the timing of surgery, but already in the early stages of cataract development, patients may suffer from reduced image quality, which affects the quality of life (“night ...
O.V. Shilovskikh   +3 more
doaj   +1 more source

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   +1 more source

Optical detection of values of separate aberrations using a multi-channel filter matched with phase Zernike functions

open access: yesКомпьютерная оптика, 2021
The use of a multichannel wavefront sensor matched with phase Zernike functions to determine the type and magnitude of aberration in the analyzed wavefront is investigated.
P.A. Khorin   +2 more
doaj   +1 more source

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   +1 more source

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   +1 more source

Home - About - Disclaimer - Privacy