Wavefront-guided versus non-wavefront-guided photorefractive keratectomy for myopia: meta-analysis of randomized controlled trials. [PDF]
PLoS ONE, 2014 To compare the efficacy, predictability, safety, and induced higher-order aberrations (HOAs) between wavefront-guided and non-wavefront-guided photorefractive keratectomy (PRK).The Cochrane Central Register of Controlled Trials, PubMED, and EMBASE were ...
Hidenaga Kobashi +4 more
doaj +1 more source
A direct comparison between a MEMS deformable mirror and a liquid crystal spatial light modulator in signal-based wavefront sensing [PDF]
Journal of the European Optical Society-Rapid Publications, 2013 Aberrations degrade the performance of optical systems in terms of resolution and signal-to-noise ratio. This work explores the feasibility of a signal-based wavefront sensor, which employs a search algorithm to estimate Zernike coefficients of given ...
Jewel A. R., Akondi V., Vohnsen B.
doaj +1 more source
Adaptive Detection of Wave Aberrations Based on the Multichannel Filter
Photonics, 2022 An adaptive method for determining the type and magnitude of aberration in a wide range is proposed on the basis of an optical processing of the analyzed wavefront using a multichannel filter matched to the adjustable Zernike phase functions.
Pavel A. Khorin +2 more
doaj +1 more source
A Review of Wavefront Sensing and Control Based on Data-Driven Methods
AerospaceOptical systems suffer from wavefront aberrations due to complex atmospheric environments and system component errors, leading to systematic aberrations and significantly degrading optical field quality. Therefore, the detection and correction of optical
Ye Zhang +4 more
doaj +1 more source
Optical quality of hyperopic and myopic phakic intraocular lenses
Indian Journal of Ophthalmology, 2014 Aims: To assess and compare the optical quality of the myopic and hyperopic implantable collamer lens (ICL) from its wavefront aberrations for different powers and pupil diameters. Settings and Design: Prospective study.
Cari Pérez-Vives +4 more
doaj +1 more source
Ultra-High Resolution Optical Aberrometry in Patients with Keratoconus: A Cross-Sectional Study
Ophthalmology and Therapy, 2023 Introduction This study performs optical aberration assessment in patients using a novel ultra-high-resolution device. The objective of this study is to analyze optical aberrations, especially the very high order wavefront (more than 10th order of ...
Gonzalo Velarde-Rodriguez +7 more
doaj +1 more source
Research on a Decoupling Algorithm for the Dual-Deformable-Mirrors Correction System
Applied Sciences, 2023 Wavefront distortion caused by atmospheric turbulence can be described as different types of aberrations, such as piston, tilt, defocusing, astigmatism, coma and so on.
Jingyuan Liang +3 more
doaj +1 more source
Simulation and analysis of deformable mirror driven by piezoelectric actuator array
Advanced Optical TechnologiesAdaptive optics (AO) is the key technology to correct wavefront aberrations. An adaptive optics system is composed of a wavefront sensor, a controller, and a wavefront corrector.
Yixv Zhao +7 more
doaj +1 more source
Lensless Scheme for Measuring Laser Aberrations Based on Computer-Generated Holograms
Sensors, 2020 All of the existing holographic wavefront sensors are either bulky or have low accuracy of measuring wavefront aberrations. In this paper, we present an improvement of the holographic method of measuring wavefront aberrations using computer-generated ...
George Krasin +4 more
doaj +1 more source
Calibration and performance evaluation of a monomorph deformable mirror
Results in Optics, 2022 To achieve diffraction-limited performance with a 50 cm solar telescope at the Udaipur solar observatory the development of a high-order adaptive optics (AO) system is currently in progress. The system includes a monomorph deformable mirror (MDM) with 85
A. Raja Bayanna +3 more
doaj +1 more source