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Title: Clinical implications of retinal oximetry in retinal vein occlusion: a review
Abstract PurposeTo review retinal vein occlusion (RVO) and its relationship with retinal oxygen saturation via automated retinal oximetry in eyes with RVO. MethodsA literature review was performed in PubMed and Medline until October 2021 utilizing specific keywords and cross‐matched reference lists. ResultsThis review found RVO to be associated with risk factors including age, hypertension, cardiovascular and metabolic conditions, male gender, and glaucoma. These may be attributed to a breakdown of regulatory processes in the retina. Retinal venous oxygen saturation (SvO2) and arteriovenous difference in eyes with central RVO have been found to be reduced and elevated, respectively. The literature indicates variable and contradictory findings in regard to branch RVO and retinal oxygenation. Additionally, ischaemic eyes have been found to have elevated retinal arterial oxygen saturation; however, the literature reports variable results regarding SvO2levels. Medications have been suggested to increase SvO2in RVO eyes, which may represent an important mechanism for disease management. Ranibizumab is currently the most studied drug for retinal oxygenation in RVO and has been suggested to increase SvO2in RVO eyes. In comparison, dexamethasone was found to decrease SvO2. ConclusionThe current literature on retinal oxygenation in ischaemic subtypes of RVO and in drug therapies is minimal, and further work is required to expand upon our understanding of how ischaemia and drugs influence retinal oxygenation and clinical outcomes.  more » « less
Award ID(s):
2021192 1853303
PAR ID:
10369505
Author(s) / Creator(s):
 ;  ;  ;  
Publisher / Repository:
Wiley-Blackwell
Date Published:
Journal Name:
Acta Ophthalmologica
Volume:
100
Issue:
6
ISSN:
1755-375X
Page Range / eLocation ID:
p. 624-631
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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