Results 101 to 110 of about 190,014 (313)
The first technique for measuring aberrations in the human eye was described by Tscherning (1894). In a psychophysical method, a grid superimposed on a 5-D spherical lens was projected on the retina and the subject could see a shadow image of the grid on the retina.
Marcos, Susana +2 more
openaire +2 more sources
Changes in monochromatic aberrations during accommodation
, 1999 Purpose: The monochromatic aberrations of the human eye are known to vary considerably between individuals. However little is known about the similarity in monochromatic aberrations between the right and left eyes of an individual and how the aberrations
Atchison, David A. +2 more
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Measurement of aberrations of a solid elastic lens using a point-diffraction interferometer [PDF]
, 2010 There has been a considerable recent increase in the use of variable focal length lenses (VFLLs), especially as microlenses in photographic objectives, endoscopes, microscope objectives, etc. One distinguishing feature of these VFLLs is the presence of a
ESTEBAN RUEDA SORIANO +2 more
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Effects of age on peripheral ocular aberrations
, 2010 On-axis monochromatic higher-order aberrations increase with age. Few studies have been made of peripheral refraction along the horizontal meridian of older eyes, and none of their off-axis higher-order aberrations.
Mathur, Ankit +4 more
core +1 more source
Molecular Oncology, EarlyView.In this explorative study, the abundance of circular RNA molecules in bone marrow stem cells was found to be elevated in patients with high‐risk myelodysplastic neoplasms, and to be associated with an increased risk of progression to acute myeloid leukemia.
Eileen Wedge +17 more
wiley +1 more source
Visual Tasks Dependence of the Neural Compensation for the Keratoconic Eye's Optical Aberrations
Journal of Optometry, 2010 Purpose: To investigate whether “normal” eyes viewing through keratoconic (KC) eye aberrations can achieve a similar visual performance (VP) to that of KC eyes. Method: We measured the high-contrast visual acuity (VA) and the 10, 15 and 20 c/deg contrast
Hélène Rouger +3 more
doaj +1 more source
Mitigating Aberration-Induced Noise: A Deep Learning-Based Aberration-to- Aberration Approach
IEEE Transactions on Medical ImagingarXiv admin note: text overlap with arXiv:2303 ...
Mostafa Sharifzadeh +4 more
openaire +3 more sources
Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers
Molecular Oncology, EarlyView.This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel +6 more
wiley +1 more source
Journal of Applied Sciences and Environmental Management, 2019 The cytogenotoxic effects of emulsifiable concentrate of amitraz pesticides was evaluated using Allium cepa L. test. The root meristems of A. cepa L. were treated with five concentrations (1%, 5%, 10%, 20% and 40%) of the chemical pesticide at 48 h for ...
A.A Adesuyi +6 more
doaj +1 more source
Component contributions to ocular aberrations
, 2016 PURPOSE: To determine component contributions to ocular aberrations. \ud \ud METHODS: Anterior and posterior corneal contributions were obtained from Pentacam topography images and data, and ocular aberrations were obtained from iTrace aberrometer images
Mathur, Ankit +4 more
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