scholarly journals Retinal oximetry with a prototype handheld oximeter during hyperoxia

2021 ◽  
Author(s):  
Wouter B. Vehmeijer ◽  
Kelly Jonkman ◽  
Sveinn H. Hardarson ◽  
Leon Aarts ◽  
Einar Stefansson ◽  
...  
Keyword(s):  
Retinal Oximetry

Retinal Oximetry Imaging in Alzheimer’s Disease

2015 ◽  
Vol 49 (1) ◽  
pp. 79-83 ◽  
Author(s):  
Anna Bryndis Einarsdottir ◽  
Sveinn Hakon Hardarson ◽  
Jona Valgerdur Kristjansdottir ◽  
David Thor Bragason ◽  
Jon Snaedal ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Retinal Oximetry

Altered retinal oxygen metabolism in patients with combined ocular and central nervous system sarcoidosis

Rheumatology ◽  
2020 ◽  
Author(s):  
Astrid Kindt ◽  
Keld-Erik Byg ◽  
Jimmi Wied ◽  
Torkell Ellingsen ◽  
Jesper Rømhild Davidsen ◽  
...  
Keyword(s):  
Oxygen Metabolism ◽  
Cross Sectional Study ◽  
Screening Methods ◽  
Cross Sectional ◽  
Corrected Visual Acuity ◽  
Multi Linear Regression ◽  
The Mean ◽  
Arteriovenous Difference ◽  
Retinal Arteriolar ◽  
Retinal Oximetry

Abstract Objective To evaluate retinal oxygen metabolism by retinal oximetry for ocular and CNS diseases in a cross-sectional study of sarcoidosis. Methods Overall 201 eyes from 103 biopsy-verified sarcoidosis patients were included and divided into four groups depending on the organ affection: (i) sarcoidosis without ocular or CNS affection, (ii) ocular sarcoidosis, (iii) CNS sarcoidosis, and (iv) combined ocular and CNS sarcoidosis. Retinal oximetry was obtained and analysed, with the mean retinal arteriolar and venular saturation as well as arteriovenous difference as principal outcomes. Comparison between groups was done in a multi linear regression model adjusted for age, sex, duration of sarcoidosis, best corrected visual acuity and retinal oximetry quality. Results Mean (s.d.) age was 50.5 (13.4) (95% CI: 47.9, 53.1) years and 52.2% were males. Eyes of the combined Ocular/CNS group had a higher retinal arteriovenous difference than eyes of the Non-ocular/no-CNS group (42.1% vs 37.7%, P = 0.012) but did not differ between other groups. Eyes in the four groups (Non-ocular/no-CNS, Ocular, CNS and Ocular/CNS) did not differ according to retinal arterial (94.5%, 93.5%, 93.5% and 94.5%, respectively) or venular (57.5%, 56.4%, 55.0% and 52.5%, respectively) oxygen saturation. Conclusions The results of this study suggest that eyes of sarcoidosis patients with combined ocular and CNS affection have an altered oxygen metabolism indicating a subclinical eye affection that is not recognized by conventional screening methods.

Retinal Oximetry Images Must Be Standardized: A Methodological Analysis

2012 ◽  
Vol 53 (4) ◽  
pp. 1729 ◽  
Author(s):  
Olafur Palsson ◽  
Asbjorg Geirsdottir ◽  
Sveinn Hakon Hardarson ◽  
Olof Birna Olafsdottir ◽  
Jona Valgerdur Kristjansdottir ◽  
...  
Keyword(s):  
Retinal Oximetry

Clinical implications of retinal oximetry in retinal vein occlusion: a review

2021 ◽  
Author(s):  
Aditya V. Belamkar ◽  
Sayena Jabbehdari ◽  
Alon Harris ◽  
Amir R. Hajrasouliha
Keyword(s):  
Retinal Vein Occlusion ◽  
Clinical Implications ◽  
Vein Occlusion ◽  
Retinal Oximetry

Retinal Oxygen Saturation and Metabolism: How does it Pertain to Glaucoma? An Update on the Application of Retinal Oximetry in Glaucoma

2013 ◽  
Vol 23 (4) ◽  
pp. 465-472 ◽  
Author(s):  
Leslie A. Tobe ◽  
Alon Harris ◽  
Anne Schroeder ◽  
Austin Gerber ◽  
Stephen Holland ◽  
...  
Keyword(s):  
Oxygen Saturation ◽  
Retinal Oximetry

scholarly journals Visible light optical coherence tomography for retinal oximetry

2014 ◽  
Author(s):  
Ji Yi ◽  
Qing Wei ◽  
Wenzhong Liu ◽  
Vadim Backman ◽  
Hao F. Zhang
Keyword(s):  
Optical Coherence Tomography ◽  
Visible Light ◽  
Optical Coherence ◽  
Retinal Oximetry

Retinal Oximetry in Subjects With Glaucomatous Hemifield Asymmetry

2017 ◽  
Vol 26 (4) ◽  
pp. 367-372 ◽  
Author(s):  
Zhu Li Yap ◽  
Charles Ong ◽  
Yi Fang Lee ◽  
Andrew Tsai ◽  
Clarissa Cheng ◽  
...  
Keyword(s):  
Retinal Oximetry

A Review of Methods for Human Retinal Oximetry

2003 ◽  
Vol 34 (2) ◽  
pp. 152-164 ◽  
Author(s):  
Alon Harris ◽  
Robert B Dinn ◽  
Larry Kagemann ◽  
Ehud Rechtman
Keyword(s):  
Retinal Oximetry

Magnetic resonance imaging retinal oximetry: a quantitative physiological biomarker for early diabetic retinopathy?

2012 ◽  
Vol 29 (4) ◽  
pp. 501-505 ◽  
Author(s):  
Y. Yang ◽  
X. R. Zhu ◽  
Q. G. Xu ◽  
H. Metcalfe ◽  
Z. C. Wang ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Diabetic Retinopathy ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Retinal Oximetry
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