{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,21]],"date-time":"2026-01-21T13:44:31Z","timestamp":1769003071797,"version":"3.49.0"},"reference-count":37,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2023,8,14]],"date-time":"2023-08-14T00:00:00Z","timestamp":1691971200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81770922 and 82070957"],"award-info":[{"award-number":["81770922 and 82070957"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Public Health"],"abstract":"<jats:sec><jats:title>Introduction<\/jats:title><jats:p>The aim of this study is to demonstrate the relevance of primary acute angle closure (APAC) and COVID-19 infection, compare the demographic features and manifestations between COVID-19 positive and negative patients with APAC, and infer the underlying mechanism.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This study is based on all patients diagnosed with APAC at the glaucoma center of Eye, Ear, Nose and Throat Hospital of Fudan University (Fenyang road center) from 15th December 2022 to 11th January 2023. Totally 171 APAC cases were categorized into COVID-19 positive and negative group. Demographic features and final treatment level of the patients were compared between the two groups. Clinical manifestations, intraocular pressure, and anterior chamber configuration were also compared between the two groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In the COVID-19 positive group, the number of cases with APAC onset spiked in 22nd December 2022, which coincided with the spike of COVID-19 antigen positive people. Compared to the COVID-19 negative group, COVID-19 positive APAC patients were younger with a lower percentage of APAC history. Additionally, more eyes of COVID-19 positive APAC patients showed keratic precipitates. COVID-19 positive eyes had significantly larger anterior chamber depth with a more dilated pupil. Therefore, COVID-19 infection could probably act as a triggering factor of APAC<\/jats:p><\/jats:sec><jats:sec><jats:title>Discussion<\/jats:title><jats:p>The onset of APAC might be accelerated by COVID-19 infection for patients with younger age and milder anatomical configuration. Additionally, COVID-19 related APAC cases might have a more abrupt and fierce onset. Ophthalmic emergent services should not be neglected during the epidemic period.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fpubh.2023.1196202","type":"journal-article","created":{"date-parts":[[2023,8,14]],"date-time":"2023-08-14T13:54:02Z","timestamp":1692021242000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":9,"title":["The occurrence of acute primary angle closure triggered, aggravated, and accelerated by COVID-19 infection: retrospective observational study"],"prefix":"10.3389","volume":"11","author":[{"given":"Yue","family":"Ying","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ruyi","family":"Zhai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yanan","family":"Sun","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qilian","family":"Sheng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xintong","family":"Fan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiangmei","family":"Kong","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2023,8,14]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"331","DOI":"10.1111\/ceo.12967","article-title":"Mechanisms underlying acute angle closure","volume":"45","author":"Nongpiur","year":"2017","journal-title":"Clin Exp Ophthalmol"},{"key":"ref2","doi-asserted-by":"publisher","first-page":"366","DOI":"10.1111\/ceo.12867","article-title":"Hidden mechanisms beyond the pupillary block in acute angle closure: ultrasound biomicroscopic study","volume":"45","author":"Suwan","year":"2017","journal-title":"Clin Exp Ophthalmol"},{"key":"ref3","doi-asserted-by":"publisher","first-page":"866","DOI":"10.1097\/00006324-198711000-00011","article-title":"Psychophysiological stress, elevated intraocular pressure, and acute closed-angle glaucoma","volume":"64","author":"Shily","year":"1987","journal-title":"Am J Optom Physiol Optic"},{"key":"ref4","doi-asserted-by":"publisher","first-page":"151","DOI":"10.3341\/kjo.2007.21.3.151","article-title":"Dark-room prone-position test for intermittent angle closure","volume":"21","author":"Kim","year":"2007","journal-title":"Korean J Ophthalmol"},{"key":"ref5","doi-asserted-by":"publisher","first-page":"49","DOI":"10.1042\/CS20070163","article-title":"Transgenic mice with ocular overexpression of an adrenomedullin receptor reflect human acute angle-closure glaucoma","volume":"114","author":"Ittner","year":"2008","journal-title":"Clin Sci (Lond)"},{"key":"ref6","doi-asserted-by":"publisher","first-page":"1424","DOI":"10.4103\/0366-6999.207482","article-title":"Decision-making impairments in primary angle-closure glaucoma patients","volume":"130","author":"Pu","year":"2017","journal-title":"Chin Med J"},{"key":"ref7","doi-asserted-by":"publisher","first-page":"1269","DOI":"10.1001\/archophthalmol.2009.241","article-title":"Plateau iris in Asian subjects with primary angle closure glaucoma","volume":"127","author":"Kumar","year":"2009","journal-title":"Arch Ophthalmol"},{"key":"ref8","first-page":"118","article-title":"Epidemiology of acute primary angle-closure glaucoma in the Hong Kong Chinese population: prospective study","volume":"7","author":"Lai","year":"2001","journal-title":"Hong Kong Med J"},{"key":"ref9","doi-asserted-by":"publisher","first-page":"1436","DOI":"10.1001\/archopht.1997.01100160606014","article-title":"Incidence of acute primary angle-closure glaucoma in Singapore. 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