{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,4,28]],"date-time":"2025-04-28T04:01:11Z","timestamp":1745812871595,"version":"3.40.4"},"reference-count":6,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"accepted":{"date-parts":[[2014,12,18]]},"abstract":"<jats:p>A 34-year-old highly myopic (\u221211.00 D) woman presented to eye clinic with a 3\u2005day history of right eye paracentral blurring. Visual acuities were 6\/6 bilaterally. Clinical examination was normal. Fundus photography showed the classic appearance of a macular haemorrhage. This is a recognised complication of high myopia and would have accounted for the patient's symptoms. However, further photography showed that the haemorrhage seemed to \u2018jump\u2019 around the fundus and was even present in the fellow eye. The apparent haemorrhage was revealed to be an imaging artefact. The \u2018Allen Dot\u2019 is a 6\u2005mm black mask incorporated into retinal cameras to reduce reflection. Rarely, in highly myopic eyes, optical artefact can result. To the best of our knowledge, we are the first in the literature to report artefacts from the Allen Dot masquerading as ophthalmic disease. This case re-iterates the importance of clinical examination, especially in high myopes, given the current trend towards virtual clinics.<\/jats:p>","DOI":"10.1136\/bcr-2014-207980","type":"journal-article","created":{"date-parts":[[2015,1,6]],"date-time":"2015-01-06T10:45:28Z","timestamp":1420541128000},"page":"bcr2014207980","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Macular pseudohaemorrhage secondary to Allen Dot artefact"],"prefix":"10.1136","volume":"2015","author":[{"given":"Luke","family":"Michaels","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Philip","family":"Alexander","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Richard","family":"Newsom","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2015,1,5]]},"reference":[{"key":"2025042702095030000_2015.jan05_1.bcr2014207980.1","first-page":"33","article-title":"Fundus changes in myopia-an overview","volume":"42","author":"Swann","year":"2002","journal-title":"Optometry Today"},{"key":"2025042702095030000_2015.jan05_1.bcr2014207980.2","first-page":"66","article-title":"A superior method of achieving high myopic retinal focus","volume":"17","author":"Kelly","year":"1995","journal-title":"J Ophthal Photography"},{"key":"2025042702095030000_2015.jan05_1.bcr2014207980.3","first-page":"37","article-title":"Fundus photography and fluorescein angiography","volume":"2","author":"Wong","year":"1979","journal-title":"J Ophthal Photography"},{"key":"2025042702095030000_2015.jan05_1.bcr2014207980.4","first-page":"51","article-title":"Lee Allen\u2014the man, the legend","volume":"12","author":"Wong","year":"1990","journal-title":"J Ophthal Photography"},{"doi-asserted-by":"publisher","key":"2025042702095030000_2015.jan05_1.bcr2014207980.5","DOI":"10.1016\/0002-9394(64)92027-6"},{"unstructured":"Eric C . Allen dots: eyerounds online atlas of ophthalmology. University of Iowa, 2014 (cited 2014). http:\/\/webeye.ophth.uiowa.edu\/eyeforum\/atlas\/pages\/Allen-dot.htm","key":"2025042702095030000_2015.jan05_1.bcr2014207980.6"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2014-207980","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,27]],"date-time":"2025-04-27T09:10:00Z","timestamp":1745745000000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2014-207980"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,1,5]]},"references-count":6,"alternative-id":["10.1136\/bcr-2014-207980"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2014-207980","relation":{},"ISSN":["1757-790X"],"issn-type":[{"type":"electronic","value":"1757-790X"}],"subject":[],"published":{"date-parts":[[2015,1,5]]}}}