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Higher order aberrations of the eye: Part two
African Vision and Eye Health, 2016 This article is the second in a series of two articles, which provides a discussion of the factors that may possibly contribute to variable results when wavefront aberrations of the human eye are measured.
Marsha Oberholzer +2 more
doaj +1 more source
Corneal Aberrations Before and After Photorefractive Keratectomy
Journal of Optometry, 2008 Purpose: To determine whether - and which - higher-order corneal aberrations, up to the sixth order, are induced by photorefractive keratectomy (PRK). Methods: 197 eyes of 197 patients have been examined with a corneal aberrometer for a 3.5 and a 6.0 mm ...
Nicola Rosa +5 more
doaj +1 more source
Photonics, 2020 (1) Background: The purpose of the study is to present a simple theoretical account of the effect of translation of coma and spherical aberrations (SA) on refractive error and higher order aberrations.
Samuel Arba-Mosquera +2 more
doaj +1 more source
Ocular higher-order aberrations in a school children population
Journal of Optometry, 2015 Purpose: The primary objective of the study was to explore the statistics of ocular higher-order aberrations in a population of primary and secondary school children.
George Papamastorakis +4 more
doaj +1 more source
Evaluation of Higher Order Aberrations after Cross-linking in patients with early Keratoconus [PDF]
Al-Azhar International Medical Journal, 2022 Background: Non-inflammatory corneal thinning and steepening are hallmarks of keratoconus (KC), which affects both eyes. The causes of KC are several.
Ahmed Tawfik +2 more
doaj +1 more source
Corneal Higher Order Aberrations in Granular, Lattice and Macular Corneal Dystrophies. [PDF]
PLoS ONE, 2016 To evaluate the corneal higher-order aberrations (HOAs) in granular, lattice and macular corneal dystrophies.This retrospective study includes consecutive patients who were diagnosed as granular corneal dystrophy type2 (GCD2; 121 eyes), lattice corneal ...
Yukari Yagi-Yaguchi +5 more
doaj +1 more source
The effects of implantable collamer lens implantation on higher order aberrations [PDF]
International Journal of Ophthalmology, 2019 AIM: To evaluate the changes in higher order aberrations (HOAs) after implantable collamer lens (ICL; Staar Surgical, Nidau, Switzerland) implantation. METHODS: Totally 30 eyes of 18 patients with myopia were included in this study with an average age ...
Belma Kayhan +3 more
doaj +1 more source
Theory and application of induced higher order color aberrations [PDF]
, 2020 Induced aberrations in general are higher-order aberrations caused by ray perturbations of lower order, picked up surface by surface in the preceding optical system.
Berner, Andrea
core +1 more source
Analysis of four aberrometers for evaluating lower and higher order aberrations. [PDF]
PLoS ONE, 2013 PURPOSE: To compare the measurements of lower and higher order aberrations (HOA) of 4 commonly used aberrometers. SETTING: Massachusetts Eye & Ear Infirmary, Boston, USA. DESIGN: Prospective, cross-sectional study, in a controlled, single-blinded fashion.
Fabiano Cade +4 more
doaj +1 more source
BMC Ophthalmology, 2018 Background To investigate corneal higher-order aberrations (HOAs) of the anterior surface, posterior surface, and total cornea after small incision lenticule extraction (SMILE) in high myopic and mild to moderate myopic patients.
Hong-Ying Jin +4 more
doaj +1 more source