{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T00:42:42Z","timestamp":1790642562804,"version":"4.1.0"},"reference-count":14,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"accepted":{"date-parts":[[2017,5,4]]},"abstract":"<jats:p>Central retinal artery occlusion (CRAO) is an ophthalmological emergency. Various treatment modalities have been tried, but none have shown to alter natural history of the disease. Hyperoxia can restore retinal oxygenation, and favourable results were obtained with hyperbaric oxygen therapy (HBOT). We report two patients with sudden visual loss due to CRAO treated with HBOT. Case 1: a 61-year-old female, presented with CRAO in her left eye(OS). She was submitted to eight sessions of HBOT(2.4atmosphere absolute (ATA)). BCVA(Best corrected visual acuity) improved from counting fingers (CF) to 1.0 and fluorescein angiography (FA) showed a normalisation. Vascular study showed a value of 8.8% for HbA1c and ventricular extrasystoles. Case 2: a 69-year-old male presented with CRAO in his OS. Nine sessions of HBOT(2.4 ATA) were performed. Best corrected visual acuity (BCVA)improved from CF to 0.8 and the FA was normalised. Vascular study revealed an atheromatous carotid disease, and cardiac pathology. HBOT seems to be beneficial on the recovery of vision following CRAO.<\/jats:p>","DOI":"10.1136\/bcr-2017-220113","type":"journal-article","created":{"date-parts":[[2017,5,12]],"date-time":"2017-05-12T05:58:10Z","timestamp":1494568690000},"page":"bcr-2017-220113","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":21,"title":["The efficacy of hyperbaric oxygen therapy in the treatment of central retinal artery occlusion"],"prefix":"10.1136","volume":"2017","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4043-006X","authenticated-orcid":false,"given":"Andreia","family":"Soares","sequence":"first","affiliation":[{"name":"Hospital de Braga, Braga, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nuno L","family":"Gomes","sequence":"additional","affiliation":[{"name":"Hospital de Braga, Braga, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lu\u00eds","family":"Mendon\u00e7a","sequence":"additional","affiliation":[{"name":"Hospital de Braga, Braga, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carla","family":"Ferreira","sequence":"additional","affiliation":[{"name":"Hospital de Braga, Braga, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2017,5,12]]},"reference":[{"key":"2025082801372686000_2017.may12_3.bcr-2017-220113.1","unstructured":"Murphy-Lavoie H , Butler F , Hagan C . The Hyperbaric Oxygen Therapy Committee Report. Central Retinal Artery Occlusion. Gesell LB , editor. Hyperbaric oxygen therapy indications. 12th edn. Durham, NC: Undersea and Hyperbaric Medical Society, 2008:57\u201366."},{"key":"2025082801372686000_2017.may12_3.bcr-2017-220113.2","first-page":"135","article-title":"Retinal artery occlusion: visual outcome after treatment with hyperbaric oxygen","volume":"41","author":"Cope","year":"2011","journal-title":"Diving Hyperb Med Journal"},{"key":"2025082801372686000_2017.may12_3.bcr-2017-220113.3","doi-asserted-by":"crossref","first-page":"688","DOI":"10.1038\/eye.2013.25","article-title":"A review of central retinal artery occlusion: clinical presentation and management","volume":"27","author":"Varma","year":"2013","journal-title":"Eye"},{"key":"2025082801372686000_2017.may12_3.bcr-2017-220113.4","first-page":"943","article-title":"Central retinal artery occlusion treated with oxygen: a literature review and treatment algorithm","volume":"39","author":"Murphy-Lavoie","year":"2012","journal-title":"Undersea Hyperb Med"},{"key":"2025082801372686000_2017.may12_3.bcr-2017-220113.5","first-page":"401","article-title":"Hyperbaric oxygen treatment of nonacute central retinal artery occlusion","volume":"36","author":"Weiss","year":"2009","journal-title":"Undersea Hyperb Med"},{"key":"2025082801372686000_2017.may12_3.bcr-2017-220113.6","doi-asserted-by":"publisher","DOI":"10.1016\/j.survophthal.2007.12.002"},{"key":"2025082801372686000_2017.may12_3.bcr-2017-220113.7","first-page":"1","article-title":"Hyperbaric oxygen therapy in an isolated cilioretinal artery occlusion: a Case Report","volume":"2","author":"Akil","year":"2015","journal-title":"Adv Ophthalmol Vis Syst"},{"key":"2025082801372686000_2017.may12_3.bcr-2017-220113.8","doi-asserted-by":"crossref","first-page":"345","DOI":"10.1177\/112067210101100405","article-title":"Early hyperbaric oxygen therapy for retinal artery occlusion","volume":"11","author":"Beiran","year":"2011","journal-title":"Eur J Ophthalmol"},{"key":"2025082801372686000_2017.may12_3.bcr-2017-220113.9","doi-asserted-by":"publisher","DOI":"10.1055\/s-2002-35687"},{"key":"2025082801372686000_2017.may12_3.bcr-2017-220113.10","doi-asserted-by":"publisher","DOI":"10.1007\/s003470070075"},{"key":"2025082801372686000_2017.may12_3.bcr-2017-220113.11","first-page":"333","article-title":"Hyperbaric oxygen therapy and the eye","volume":"35","author":"Butler","year":"2008","journal-title":"Undersea Hyperb Med"},{"key":"2025082801372686000_2017.may12_3.bcr-2017-220113.12","first-page":"3","article-title":"Central retinal artery occlusion, treated with hyperbaric oxygen","volume":"7","author":"Hertzog","year":"1992","journal-title":"J Hyperbaric Medicine"},{"key":"2025082801372686000_2017.may12_3.bcr-2017-220113.13","doi-asserted-by":"crossref","first-page":"454","DOI":"10.1016\/j.ajo.2011.08.009","article-title":"Early hyperbaric oxygen treatment for nonarteritic central retinal artery obstruction","volume":"153","author":"Menzel-Severing","year":"2012","journal-title":"Am J Ophthalmol"},{"key":"2025082801372686000_2017.may12_3.bcr-2017-220113.14","first-page":"315","article-title":"Clinical case report: treatment of a central retinal vein occlusion with hyperbaric oxygen","volume":"34","author":"Wright","year":"2007","journal-title":"Undersea Hyperb Med"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2017-220113","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T08:37:35Z","timestamp":1756370255000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2017-220113"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,5,12]]},"references-count":14,"alternative-id":["10.1136\/bcr-2017-220113"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2017-220113","relation":{},"ISSN":["1757-790X"],"issn-type":[{"value":"1757-790X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,5,12]]}}}