Results 101 to 110 of about 70,682 (288)

Lamina Cribrosa and Choroid Features and Their Relationship to Stage of Pseudoexfoliation Glaucoma. [PDF]

open access: yes, 2018
PurposeTo better understand the relationship of lamina cribrosa (LC) and choroid features to the severity of pseudoexfoliation glaucoma (PXG).MethodsIn this cross-sectional study, 137 eyes of 122 subjects (47 eyes with moderate/advanced PXG [mean ...
Chen, Rebecca   +6 more
core  

Logarithmic intensity and speckle-based motion contrast methods for human retinal vasculature visualization using swept source optical coherence tomography [PDF]

open access: yes, 2012
We formulate a theory to show that the statistics of OCT signal amplitude and intensity are highly dependent on the sample reflectivity strength, motion, and noise power.
Cense   +25 more
core   +2 more sources

T2‐Weighted T1 Mapping and Automated Segmentation of CSF: Assessment of Solute Gradients in the Healthy Brain

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Cerebrospinal fluid (CSF) serves as a medium for nutrient delivery and waste clearance. The T1 relaxation rate, R1, can be used to measure the concentration of intrinsic solutes and extrinsic contrast agents. Purpose To implement a method for R1 mapping and segmentation of CSF and to use this method to explore how R1 of CSF relates ...
Tryggve Holck Storås   +9 more
wiley   +1 more source

Shared latent structures between imaging features and biomarkers in early stages of Alzheimer's disease: a predictive study [PDF]

open access: yes, 2019
© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new ...
Casamitjana Díaz, Adrià   +4 more
core   +1 more source

A Novel Slit Lamp‐Based System for 3D Ultrasound of the Eye

open access: yesJournal of Ultrasound in Medicine, EarlyView.
Objectives This study aims to develop and evaluate a novel slit‐lamp‐based system to acquire 3‐dimensional (3D) ultrasound volumes using conventional ultrasound probes. Methods A slit‐lamp adapter was 3D printed and connected with a linear actuator and graphical user interface (GUI) system to control movement and create volumes of 2‐dimensional scans ...
Claire E. Malley   +9 more
wiley   +1 more source

Low‐contrast visual acuity versus low‐luminance visual acuity in choroideremia

open access: yesClinical and Experimental Optometry, EarlyView., 2020
Clinical relevance Choroideremia is a progressive X‐linked inherited rod‐cone dystrophy. Patients present with nyctalopia and progressive visual field loss, but visual acuity remains well preserved early on. This study showed that low‐luminance visual acuity may be a useful clinical outcome measure during earlier disease stages.
Laura J Wood   +6 more
wiley   +1 more source

Comparative Study of Accommodative Function and Binocular Vision in Patients With Primary Angle‐Closure Disease

open access: yesThe Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT The age‐related decline in accommodative function after the age of 50 years corresponds with an increasing incidence of primary angle‐closure disease (PACD); however, the interaction between this decline and PACD remains unexamined. Additionally, refractive error‐accommodation associations in elderly individuals, which are critical for PACD ...
Feng‐Rui Yang   +6 more
wiley   +1 more source

Untangling the Most Probable Role for Vitamin D\u3csub\u3e3\u3c/sub\u3e in Autism [PDF]

open access: yes, 2017
Recent studies indicate an important role for vitamin D3 in autism spectrum disorder (ASD), although its mechanism is not completely understood.
Godar, Dianne E., Merrill, Stephen J.
core   +1 more source

Homogenous Cell Transplantation Trials in Parkinson's Disease: A Systematic Review and Meta‐Analysis

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background The transplantation of homogenous cells has emerged as an investigational strategy for Parkinson's disease (PD), offering an alternative to symptomatic treatment. Objective We performed a systematic review and meta‐analysis to assess its clinical efficacy and safety.
Nolan Reinisch   +4 more
wiley   +1 more source

Association of dietary inflammatory index and refractive status in American adolescents: NHANES 1999–2008

open access: yesFrontiers in Medicine
BackgroundSeveral nutrients have been found to be associated with the prevalence of myopia, and the role of dietary patterns in influencing myopia risk has recently garnered significant attention.
Xiaodong Chen   +26 more
doaj   +1 more source

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