Results 101 to 110 of about 43,431 (244)

Identification of a candidate gene for astigmatism [PDF]

open access: yes, 2013
PURPOSE. Astigmatism is a common refractive error that reduces vision, where the curvature and refractive power of the cornea in one meridian are less than those of the perpendicular axis. It is a complex trait likely to be influenced by both genetic and
Rahi, Jugnoo S   +45 more
core   +1 more source

Elevated Nocturnal CO2 and Autonomic Dysfunction in Children With Down Syndrome

open access: yesJournal of Intellectual Disability Research, EarlyView.
ABSTRACT Background Sleep‐disordered breathing (SDB) frequently complicates Down syndrome (DS). Beyond upper airway obstruction, emerging evidence suggests an autonomic nervous system (ANS) dysfunction affecting CO2 regulation. The aim of this study was to investigate nocturnal gas exchanges in children with DS and compare them to what has been ...
Jessica Taytard   +12 more
wiley   +1 more source

Consensus on the management of astigmatism in cataract surgery

open access: yes, 2019
Maria X Núñez,1 Maria A Henriquez,2 Luis J Escaf,3 Bruna V Ventura,4 Miguel Srur,5 Lyle Newball,6 Arnaldo Espaillat,7 Virgilio A Centurion8 1Unit of Cornea, Cataract and Refractive Surgery, Grupo de Investigacion Vision Sana, Clinica de ...
Henriquez MA   +7 more
core  

The axis orientation of posterior corneal astigmatism in eyes with with-the-rule (WTR) anterior corneal astigmatism.

open access: yes, 2015
The axis orientation of posterior corneal astigmatism in eyes with with-the-rule (WTR) anterior corneal astigmatism.
Kazutaka Kamiya (284327)   +2 more
core   +1 more source

Reduced order modelling of air‐puff test for corneal material characterisation

open access: yesJournal of Microscopy, EarlyView.
Abstract Models of the fluid–structure interaction (FSI) model for the air‐puff test were analysed. Using Abaqus, the air‐puff test is applied to eyes with varying biomechanical parameters, such as material properties, corneal thickness, and radius.
Osama M. Maklad, Muting Hao
wiley   +1 more source

Assessment of corneal astigmatism following frown and straight incision forms in sutureless manual small incision cataract surgery

open access: yes, 2016
Angela Ofeibea Amedo, Kwadwo Amoah, Nana Yaa Koomson, David Ben Kumah, Eugene Appenteng Osae Department of Optometry and Visual Science, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana Abstract: To investigate which of two tunnel ...
Amoah K   +4 more
core  

Beyond single cells: Ten years of commercial lattice light‐sheet microscopy

open access: yesJournal of Microscopy, EarlyView.
Abstract Lattice light‐sheet microscopy (LLSM) enables gentle, rapid, volumetric fluorescence imaging of living biological systems. The technique employs Bessel beam interference to produce a light‐sheet which retains its thickness over a relatively large field‐of‐view compared to other light‐sheets.
Helena L. E. Coker, David S. Corcoran
wiley   +1 more source

Prevalence and profile of astigmatism in individuals availing ophthalmic services at Central Regional Referral Hospital, Gelephu, Bhutan: A cross-sectional, hospital-based study

open access: yesBhutan Health Journal
Introduction: Astigmatism has been defined as a type of refractive error when parallel rays of light entering the eye are not focused at one point of the retina when accommodation is at rest due to irregular curvature of the cornea or lens surface.
Sangay Choden   +2 more
doaj   +1 more source

Multivariate Regression Analysis to Predict Postoperative Refractive Astigmatism in Cataract Surgery

open access: yesJournal of Ophthalmology, 2020
Purpose. To assess the correlation between postoperative refractive astigmatism and preoperative parameters in cataract surgery. Methods. Left eyes of 100 consecutive patients scheduled for cataract surgery with a 2.4 mm clear corneal incision were ...
Atsushi Kawahara   +2 more
doaj   +1 more source

Prenatal Diagnosis of Recurrent Fetal Intracranial Hemorrhage and a Maternally Inherited COL4A1 Variant of Uncertain Significance: A Case Report With Maternal Reverse Phenotyping

open access: yesClinical Case Reports, Volume 14, Issue 11, November 2026.
ABSTRACT A 33‐year‐old woman with two consecutive pregnancies affected by fetal left periventricular germinal matrix hemorrhage (Grade IV) and progressive ventriculomegaly underwent trio whole‐exome sequencing. A heterozygous COL4A1 c.4249G>C (p.Gly1417Arg) variant, classified as a variant of uncertain significance, was identified in the fetus of the ...
Wei Shi   +9 more
wiley   +1 more source

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