Results 41 to 50 of about 13,495,511 (263)
Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
FEBS Letters, EarlyView.Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee +7 more
wiley +1 more source
iTrace – A Ray Tracing Aberrometer
Delhi Journal of Ophthalmology, 2019 Modern ophthalmology focusses on visual quality and not just visual acuity. The quality of vision is affected by both lower and higher order aberrations.
Ayushi Sinha +4 more
doaj +1 more source
Optical Aberrations and Wavefront
, 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
core +1 more source
Contrast sensitivity benefit of adaptive optics correction of ocular aberrations. [PDF]
, 2011 While correcting the aberrations of the eye produces large increases in retinal image contrast, the corresponding improvement factors in the contrast sensitivity function have been little explored and results are controversial.
S. Marcos +9 more
core +1 more source
Design and analysis strategies for robust microbiome ageing research
FEBS Letters, EarlyView.The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik +5 more
wiley +1 more source
Higher order aberrations in amblyopic children and their role in refractory amblyopia
Revista Brasileira de Oftalmologia, 2014 Objective: Some studies have hypothesized that an unfavourable higher order aberrometric profile could act as an amblyogenic mechanism and may be responsible for some amblyopic cases that are refractory to conventional treatment or cases of “idiopathic ...
Arnaldo Dias-Santos +6 more
doaj +1 more source
Indian Journal of Ophthalmology, 2022 Purpose: To assess impact of tear optics on repeatability of a Scheimpflug device with a Hartmann Shack aberrometer and a ray tracing aberrometer. Methods: One hundred healthy and 100 postrefractive surgery eyes underwent dry eye evaluation including ...
GairikKundu +6 more
doaj +1 more source
Ocular higher-order aberrations, age and refraction [PDF]
, 2016 Higher-order aberration data of 339 right eyes from an optometric practice were measured using the Carl Zeiss i.Profiler. We analysed effects of age and refraction on higher-order aberrations.
Atchison, David A., Hartwig, Andreas
core
, 2014 Objectives: To study the effect of corneal collagen cross-linking on conus curvature and corneal aberrations in keratoconus. Materials and Methods: The medical records of thirty-seven eyes of 32 progressive keratoconus patients (17 male, 15 female ...
Sücattin İlker Kocamış +3 more
core +1 more source
Derivation of analytical refraction, propagation and reflection equations for higher order aberrations of wavefronts [PDF]
, 2012 Derivation of analytical refraction, propagation and reflection equations for Higher Order Aberrations of wavefronts From literature the analytical calculation of Lower Order Aberrations (LOA) of a wavefront after refraction, propagation and reflection ...
Esser, Gregor
core +1 more source