Results 1 to 10 of about 5,111 (161)

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   +2 more sources

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

Experimental Verification of Model-Based Wavefront Sensorless Adaptive Optics System for Large Aberrations [PDF]

open access: yesMicromachines
To address the limitations of conventional wavefront sensorless adaptive optics (AO) systems regarding iteration efficiency and convergence speed, this study conducts an experimental validation of a model-based wavefront sensorless AO approach.
Huizhen Yang   +4 more
doaj   +2 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

Research on Wavefront Sensing Applications Based on Photonic Lanterns [PDF]

open access: yesSensors
The Photonic Lantern (PL) is a novel fiber optic device emerging in wavefront sensing, which converts multimode fiber light fields into single-mode fields.
Zhengkang Zhao   +10 more
doaj   +2 more sources

Near work induced wavefront aberrations in myopia

open access: yesVision Research, 2005
We undertook a detailed analysis of the wavefront aberrations of the eyes of 20 young progressing myopes (mean age=22 years; mean spherical equivalent=-3.84 D, range -1.00 to -7.5 D) and twenty young age matched emmetropes (mean age=23 years; mean spherical equivalent=-0.00 D, range +0.25 to -0.25 D).
Tobias Buehren   +2 more
exaly   +4 more sources

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

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

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   +2 more sources

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