A deep dive into hyperbaric environments and intraocular pressure—a systematic review

PurposeSCUBA diving exposes participants to a unique hyperbaric environment, but few studies have examined the effects of such an environment on intraocular pressure (IOP) and glaucoma. This systematic review aims to consolidate recent literature findings regarding the impact of increased atmospheri...

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Main Authors: Paul Connor Lentz, Sheng Yang Lim, Bjorn Kaijun Betzler, Darby D. Miller, Syril K. Dorairaj, Bryan Chin Hou Ang
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-04-01
Series:Frontiers in Medicine
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmed.2024.1365259/full
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author Paul Connor Lentz
Sheng Yang Lim
Bjorn Kaijun Betzler
Darby D. Miller
Syril K. Dorairaj
Bryan Chin Hou Ang
Bryan Chin Hou Ang
Bryan Chin Hou Ang
author_facet Paul Connor Lentz
Sheng Yang Lim
Bjorn Kaijun Betzler
Darby D. Miller
Syril K. Dorairaj
Bryan Chin Hou Ang
Bryan Chin Hou Ang
Bryan Chin Hou Ang
author_sort Paul Connor Lentz
collection DOAJ
description PurposeSCUBA diving exposes participants to a unique hyperbaric environment, but few studies have examined the effects of such an environment on intraocular pressure (IOP) and glaucoma. This systematic review aims to consolidate recent literature findings regarding the impact of increased atmospheric pressure on IOP and glaucoma.MethodsThree online databases were searched to identify publications encompassing the subjects of diving or increased atmospheric pressure in conjunction with IOP or glaucoma. Three reviewers independently screened the publications and identified eligible articles. Relevant data was extracted from each article. The heterogeneity of the data precluded the conduct of a meta-analysis.ResultsNine studies met the inclusion criteria. Six experimental studies employed hyperbaric chambers to measure IOP under simulated diving conditions. Among these, IOP exhibited a reduction with increased atmospheric pressures in four studies, while the findings of two studies were inconclusive. One study measured IOP pre- and post-dive and another measured IOP with and without a diving mask. Post-dive, a decrease in IOP was observed, and a statistically significant reduction was noted when subjects wore a diving mask. A retrospective study examining the incidence of acute angle closure glaucoma attack found no association with weather or atmospheric pressure.ConclusionThe majority of studies found IOP to decrease with increased atmospheric pressure and after diving. The mechanisms underlying this reduction remain incompletely understood, with potential contributors including changes in ocular blood flow, sympathetic responses, and increased oxygenation. Hyperbaric chambers may have potential in future glaucoma treatments, but more studies are required to draw reliable conclusions regarding the safety of diving for glaucoma patients.
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spelling doaj.art-55fd6e3f73d84fb1b6a2ed6412d4c1502024-04-03T04:38:14ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2024-04-011110.3389/fmed.2024.13652591365259A deep dive into hyperbaric environments and intraocular pressure—a systematic reviewPaul Connor Lentz0Sheng Yang Lim1Bjorn Kaijun Betzler2Darby D. Miller3Syril K. Dorairaj4Bryan Chin Hou Ang5Bryan Chin Hou Ang6Bryan Chin Hou Ang7Mayo Clinic Alix School of Medicine, Jacksonville, FL, United StatesDepartment of Ophthalmology, Tan Tock Seng Hospital, National Healthcare Group Eye Institute, Singapore, SingaporeDepartment of Ophthalmology, Tan Tock Seng Hospital, National Healthcare Group Eye Institute, Singapore, SingaporeDepartment of Ophthalmology, Mayo Clinic, Jacksonville, FL, United StatesDepartment of Ophthalmology, Mayo Clinic, Jacksonville, FL, United StatesDepartment of Ophthalmology, Tan Tock Seng Hospital, National Healthcare Group Eye Institute, Singapore, SingaporeDepartment of Ophthalmology, Mayo Clinic, Jacksonville, FL, United StatesDepartment of Ophthalmology, Woodlands Health Campus, National Healthcare Group Eye Institute, Singapore, SingaporePurposeSCUBA diving exposes participants to a unique hyperbaric environment, but few studies have examined the effects of such an environment on intraocular pressure (IOP) and glaucoma. This systematic review aims to consolidate recent literature findings regarding the impact of increased atmospheric pressure on IOP and glaucoma.MethodsThree online databases were searched to identify publications encompassing the subjects of diving or increased atmospheric pressure in conjunction with IOP or glaucoma. Three reviewers independently screened the publications and identified eligible articles. Relevant data was extracted from each article. The heterogeneity of the data precluded the conduct of a meta-analysis.ResultsNine studies met the inclusion criteria. Six experimental studies employed hyperbaric chambers to measure IOP under simulated diving conditions. Among these, IOP exhibited a reduction with increased atmospheric pressures in four studies, while the findings of two studies were inconclusive. One study measured IOP pre- and post-dive and another measured IOP with and without a diving mask. Post-dive, a decrease in IOP was observed, and a statistically significant reduction was noted when subjects wore a diving mask. A retrospective study examining the incidence of acute angle closure glaucoma attack found no association with weather or atmospheric pressure.ConclusionThe majority of studies found IOP to decrease with increased atmospheric pressure and after diving. The mechanisms underlying this reduction remain incompletely understood, with potential contributors including changes in ocular blood flow, sympathetic responses, and increased oxygenation. Hyperbaric chambers may have potential in future glaucoma treatments, but more studies are required to draw reliable conclusions regarding the safety of diving for glaucoma patients.https://www.frontiersin.org/articles/10.3389/fmed.2024.1365259/fullintraocular pressureglaucomadivingatmospheric pressurehyperbaric
spellingShingle Paul Connor Lentz
Sheng Yang Lim
Bjorn Kaijun Betzler
Darby D. Miller
Syril K. Dorairaj
Bryan Chin Hou Ang
Bryan Chin Hou Ang
Bryan Chin Hou Ang
A deep dive into hyperbaric environments and intraocular pressure—a systematic review
Frontiers in Medicine
intraocular pressure
glaucoma
diving
atmospheric pressure
hyperbaric
title A deep dive into hyperbaric environments and intraocular pressure—a systematic review
title_full A deep dive into hyperbaric environments and intraocular pressure—a systematic review
title_fullStr A deep dive into hyperbaric environments and intraocular pressure—a systematic review
title_full_unstemmed A deep dive into hyperbaric environments and intraocular pressure—a systematic review
title_short A deep dive into hyperbaric environments and intraocular pressure—a systematic review
title_sort deep dive into hyperbaric environments and intraocular pressure a systematic review
topic intraocular pressure
glaucoma
diving
atmospheric pressure
hyperbaric
url https://www.frontiersin.org/articles/10.3389/fmed.2024.1365259/full
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