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Literature search revealed one previous report of a retained IOFB associated with optic disc swelling as part of an ocular siderosis case series. The possibility that the optic disc swelling in our patient was as a result of a local toxic reaction to the metallic foreign body is discussed.<\/jats:p>","DOI":"10.1136\/bcr-2024-261236","type":"journal-article","created":{"date-parts":[[2025,4,26]],"date-time":"2025-04-26T09:55:21Z","timestamp":1745661321000},"page":"e261236","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Optic disc swelling associated with retained metallic intraocular foreign body"],"prefix":"10.1136","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2176-0266","authenticated-orcid":false,"given":"Ruth","family":"Jones","sequence":"first","affiliation":[{"name":"Ophthalmology, Royal Hallamshire Hospital, Sheffield, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Irene","family":"Pepper","sequence":"additional","affiliation":[{"name":"Ophthalmology, Royal Hallamshire Hospital, Sheffield, 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