Reproducibility of retinal oximetry measurements in healthy and diseased retinas

Retinal Oximetry in a Healthy Japanese Population

PURPOSE To establish the normative database of retinal oximetry using Oxymap T1 in a healthy Japanese population, and study the reproducibility of the measurements in Japanese. METHODS We measured oxygen saturation in the major retinal vessels with Oxymap T1 in 252 eyes of 252 healthy Japanese subjects. Fundus images acquired using Oxymap T1 were processed using built-in Oxymap Analyzer softw...

The influence of simulated cataract on retinal vessel oximetry measurements.

PURPOSE To assess the impact of human crystalline lens opacification and yellowing, similar to that observed in patients with cataracts, on retinal vessel blood oxygen saturation measurements using custom manufactured soft contact lenses. METHODS Ten healthy, non-smoking individuals were enrolled for this study. All subjects underwent digital blood pressure measurements, assessment of non-con...

Evaluation of Pulse Oximetry in the Early Diagnosis of Cardiac and NonCardiac Diseases in Healthy Newborns

Background: Critical congenital heart diseases (CCHDs) are among the most common birth malformations. This study aimed to determine the cardiac and noncardiac diseases in the Iranian healthy newborns using pulse oximetry (POX) as a suggested screening method.Methods: In this cross-sectional study, healthy term and near term neonates who were born from October 2017 to March 2018 were evalu...

Assessment of Reproducibility of Geometric Distortion in MRI using Phantom Measurements

Introduction:  Image  distortion  is  one  of  the  major  problems  of  magnetic  resonance  imaging  (MRI) for use in 3DMRI, velocity MRI, FMRI and radiotherapy treatment planning (RTTP). It is  widely known that the most obvious effect of the inhomogenity of the magnetic fields and the  nonlinearity  of  the  gradient  is  the  Geometric  Distortion  of  MR  tomograms.  In  this  study,  the...

University of Groningen Collagens and retinal Müller cells in healthy and diseased vitreoretinal interface