{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T17:32:05Z","timestamp":1780594325183,"version":"3.54.1"},"reference-count":13,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"accepted":{"date-parts":[[2014,12,19]]},"abstract":"<jats:p>A 64-year-old man presented with a 2-day history of acute onset painless left ptosis. He had no other symptoms; importantly pupils were equal and reactive and eye movements were full. There was no palpable mass or swelling. He was systemically well with no headache, other focal neurological signs, or symptoms of fatigue. CT imaging showed swelling of the levator palpebrae superioris suggestive of myositis. After showing no improvement over 5\u2005days the patient started oral prednisolone 30\u2005mg reducing over 12\u2005weeks. The ptosis resolved quickly and the patient remains symptom free at 6\u2005months follow-up. Acute ptosis may indicate serious pathology. Differential diagnoses include a posterior communicating artery aneurysm causing a partial or complete third nerve palsy, Horner\u2019s syndrome, and myasthenia gravis. A careful history and examination must be taken. Orbital myositis typically involves the extraocular muscles causing pain and diplopia. Isolated levator myositis is rare.<\/jats:p>","DOI":"10.1136\/bcr-2014-207720","type":"journal-article","created":{"date-parts":[[2015,1,6]],"date-time":"2015-01-06T05:45:28Z","timestamp":1420523128000},"page":"bcr2014207720","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":14,"title":["Acute unilateral isolated ptosis"],"prefix":"10.1136","volume":"2015","author":[{"given":"Jennifer Helen","family":"Court","sequence":"first","affiliation":[{"name":"Department of Ophthalmology, Singleton Hospital, Swansea, UK"},{"name":"Home, Swansea, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Janicek","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Singleton Hospital, Swansea, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2015,1,5]]},"reference":[{"key":"2025082701371606000_2015.jan05_1.bcr2014207720.1","doi-asserted-by":"publisher","DOI":"10.3109\/01658109008997264"},{"key":"2025082701371606000_2015.jan05_1.bcr2014207720.2","doi-asserted-by":"publisher","DOI":"10.1097\/00006123-200112000-00034"},{"key":"2025082701371606000_2015.jan05_1.bcr2014207720.3","doi-asserted-by":"publisher","DOI":"10.2176\/nmc.cr2012-0383"},{"key":"2025082701371606000_2015.jan05_1.bcr2014207720.4","doi-asserted-by":"publisher","DOI":"10.1007\/s11882-009-0045-y"},{"key":"2025082701371606000_2015.jan05_1.bcr2014207720.5","doi-asserted-by":"publisher","DOI":"10.1097\/00002281-199711000-00005"},{"key":"2025082701371606000_2015.jan05_1.bcr2014207720.6","doi-asserted-by":"crossref","unstructured":"Dubey A , Eidsness R , Koul R . 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