Normative database of retinal oximetry in Asian Indian eyes.
To study the oxygen saturation profile in normal Asian Indian eyes.A cross sectional prospective study.Ninety eight consecutive patients presenting to our hospital with best corrected distance visual acuity (BCVA) of 20/20 and a normal ophthalmic examination were included in the study. Patients havi...
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ftdoajarticles:oai:doaj.org/article:819ea800e85d42aba4df5b8edf82f183 2023-05-15T16:50:43+02:00 Normative database of retinal oximetry in Asian Indian eyes. Ashwin Mohan Supriya Dabir Naresh Kumar Yadav Matthew Kummelil Rajesh S Kumar Rohit Shetty 2015-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0126179 https://doaj.org/article/819ea800e85d42aba4df5b8edf82f183 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC4414619?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0126179 https://doaj.org/article/819ea800e85d42aba4df5b8edf82f183 PLoS ONE, Vol 10, Iss 4, p e0126179 (2015) Medicine R Science Q article 2015 ftdoajarticles https://doi.org/10.1371/journal.pone.0126179 2022-12-31T00:13:42Z To study the oxygen saturation profile in normal Asian Indian eyes.A cross sectional prospective study.Ninety eight consecutive patients presenting to our hospital with best corrected distance visual acuity (BCVA) of 20/20 and a normal ophthalmic examination were included in the study. Patients having any ocular or systemic disease were excluded from the study.Oximetry was performed on all subjects with the Oxymap T1 retinal oximeter (Oxymap hf, Reykjavik, Iceland).The images were analysed for oxygen saturation and diameter.The mean age was 33 years (Range: 18-63; SD: 12.4). The average arteriolar saturation was 90.3 ± 6.6% and the venous saturation was 56.9% ± 6.3. The average A-V (arterio-venous) difference was 33.2% ± 5.2. There was an increase in arteriolar (R2 = 0.264; p=0.001) and venous saturation (R2 = 0.151; p=0.001) with age. There was no significant change in the arterio-venous saturation difference (AVSD). The inferotemporal quadrant had the lowest saturations. Age correlated positively with ocular perfusion pressure (OPP)(R2 = 0.07; p=0.007). OPP correlated positively with global arteriolar saturation (R2=0.057, p=0.018).This study provides the normative database for an Indian population and is comparable to previous studies. Age, vessel diameter and OPP were the significant factors that influenced the saturation. Arteriolar and venous saturations increased with age while the AVSD did not change significantly. Article in Journal/Newspaper Iceland Directory of Open Access Journals: DOAJ Articles Indian PLOS ONE 10 4 e0126179 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Ashwin Mohan Supriya Dabir Naresh Kumar Yadav Matthew Kummelil Rajesh S Kumar Rohit Shetty Normative database of retinal oximetry in Asian Indian eyes. |
topic_facet |
Medicine R Science Q |
description |
To study the oxygen saturation profile in normal Asian Indian eyes.A cross sectional prospective study.Ninety eight consecutive patients presenting to our hospital with best corrected distance visual acuity (BCVA) of 20/20 and a normal ophthalmic examination were included in the study. Patients having any ocular or systemic disease were excluded from the study.Oximetry was performed on all subjects with the Oxymap T1 retinal oximeter (Oxymap hf, Reykjavik, Iceland).The images were analysed for oxygen saturation and diameter.The mean age was 33 years (Range: 18-63; SD: 12.4). The average arteriolar saturation was 90.3 ± 6.6% and the venous saturation was 56.9% ± 6.3. The average A-V (arterio-venous) difference was 33.2% ± 5.2. There was an increase in arteriolar (R2 = 0.264; p=0.001) and venous saturation (R2 = 0.151; p=0.001) with age. There was no significant change in the arterio-venous saturation difference (AVSD). The inferotemporal quadrant had the lowest saturations. Age correlated positively with ocular perfusion pressure (OPP)(R2 = 0.07; p=0.007). OPP correlated positively with global arteriolar saturation (R2=0.057, p=0.018).This study provides the normative database for an Indian population and is comparable to previous studies. Age, vessel diameter and OPP were the significant factors that influenced the saturation. Arteriolar and venous saturations increased with age while the AVSD did not change significantly. |
format |
Article in Journal/Newspaper |
author |
Ashwin Mohan Supriya Dabir Naresh Kumar Yadav Matthew Kummelil Rajesh S Kumar Rohit Shetty |
author_facet |
Ashwin Mohan Supriya Dabir Naresh Kumar Yadav Matthew Kummelil Rajesh S Kumar Rohit Shetty |
author_sort |
Ashwin Mohan |
title |
Normative database of retinal oximetry in Asian Indian eyes. |
title_short |
Normative database of retinal oximetry in Asian Indian eyes. |
title_full |
Normative database of retinal oximetry in Asian Indian eyes. |
title_fullStr |
Normative database of retinal oximetry in Asian Indian eyes. |
title_full_unstemmed |
Normative database of retinal oximetry in Asian Indian eyes. |
title_sort |
normative database of retinal oximetry in asian indian eyes. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2015 |
url |
https://doi.org/10.1371/journal.pone.0126179 https://doaj.org/article/819ea800e85d42aba4df5b8edf82f183 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
PLoS ONE, Vol 10, Iss 4, p e0126179 (2015) |
op_relation |
http://europepmc.org/articles/PMC4414619?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0126179 https://doaj.org/article/819ea800e85d42aba4df5b8edf82f183 |
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https://doi.org/10.1371/journal.pone.0126179 |
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PLOS ONE |
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