Results 71 to 80 of about 43,431 (244)
The impact of simulated astigmatism on functional measures of visual performance [PDF]
, 2015 Uncorrected refractive error, including astigmatism, is a leading cause of reversible visual impairment. While the ability to perform vision-related daily activities is reduced when people are not optimally corrected, only limited research has ...
Yang, Sung-Hua
core
Journal of Synchrotron Radiation, EarlyView.The XSS beamline at PAL‐XFEL provides a femtosecond time‐resolved Bragg coherent X‐ray diffraction imaging setup, optimized for tracking transient lattice dynamics and nanoscale strain fields within single crystals during dynamic processes.We report on the design and operational characterization of a femtosecond time‐resolved Bragg coherent X‐ray ...
Jinback Kang +8 more
wiley +1 more source
Effect of astigmatism and spherical equivalent correction on contrast sensitivity [PDF]
International Journal of OphthalmologyAIM: To investigate the effect of astigmatism and spherical equivalent (SE) correction on contrast sensitivity (CS). METHODS: In this cross-sectional study, 103 visually normal subjects aged 18 to 36y with bilateral regular astigmatism in range of 1.00 ...
Maryam Saffarizadeh +3 more
doaj +1 more source
Visual acuity measures do not reliably detect childhood refractive error--an epidemiological study. [PDF]
, 2012 PURPOSE: To investigate the utility of uncorrected visual acuity measures in screening for refractive error in white school children aged 6-7-years and 12-13-years.
Nicola S Logan +19 more
core +2 more sources
Correlative X‐ray imaging and fluorescence microscopy in hydrated environments
Journal of Synchrotron Radiation, EarlyView.We present a combined imaging platform that integrates beamline‐compatible fluorescence microscopy with scanning small‐angle X‐ray scattering to enable sequential multimodal investigations of hydrated cells under near‐native conditions. We apply our method to ordered cytoskeletal structures in different cell types and demonstrate the direct correlation
Mangalika Sinha +8 more
wiley +1 more source
Correlation Between Keratometric and Refractive Astigmatism in Pseudophakes
Clinical Ophthalmology, 2021 Shavini Athukorala,1 Neal Kansara,2 Erik Lehman,3 Seth M Pantanelli1 1Department of Ophthalmology, Penn State College of Medicine, Hershey, PA, USA; 2Department of Ophthalmology, Baylor College of Medicine, Houston, TX, USA; 3Department of Public Health ...
Athukorala S +3 more
doaj
, 2022 Importance: Parental astigmatism is a factor associated with risk for development of child astigmatism; however, the magnitude of the association has not been determined.
Young, Alvin L. +14 more
core +1 more source
Insect Science, EarlyView.A bacterial‐derived AvPBL gene encoding a pantothenate‐β‐alanine ligase was identified in Amphitetranychus viennensis. RNAi silencing of AvPBL reduced pantothenic acid production, impairing reproduction and diapause induction, while pantothenic acid supplementation rescued these phenotypes.
Meibin Liu +8 more
wiley +1 more source
Clinical Ophthalmology, 2017 Manoj Motwani Motwani LASIK Institute, San Diego, CA, USA Purpose: To show how an incorrect manifest astigmatism axis can cause an abnormal induced astigmatism on a new axis. Patients and methods: Four eyes of three patients were treated primarily with
Motwani M
doaj