Diplopia following sub-tenon’s anaesthesia : an unusual complication

Blum, Robert Alexander and Lim, Lik Thai and Weir, Clifford R. (2012) Diplopia following sub-tenon’s anaesthesia : an unusual complication. International ophthalmology, 32 (2). pp. 191-193. ISSN 1573-2630

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Abstract

Diplopia is a rare but well recognised complication following retrobulbar and peribulbar local anaesthesia but it has not been widely reported following sub-tenon's local anaesthesia (STLA). We report on a 76-year-old woman who developed vertical diplopia after left phacoemulsification. She had received a STLA. She had left hypotropia measuring 30 prism diopters for near and distance. She was managed with occlusion but there was no improvement in her findings over 6 months. Ocular motility opinion was then sought and a presumptive diagnosis of inferior rectus fibrosis was made. She subsequently underwent a left inferior rectus recession using adjustable sutures. Postoperatively she had a residual left hypotropia measuring 8 prism dioptres and single vision. Possible causes of inferior rectus fibrosis include muscle damage during traumatic sub-tenon's block or myotoxicity due to local anaesthetic agents. This case highlights the importance of close supervision of inexperienced staff administering regional anaesthetics.

Item Type: E-Article
Uncontrolled Keywords: Cataract extraction, � Diplopia, � Anaesthesia, � Strabismus � Sub-tenon’s, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, research, Universiti Malaysia Sarawak.
Subjects: R Medicine > R Medicine (General)
R Medicine > RE Ophthalmology
Divisions: Academic Faculties, Institutes and Centres > Faculty of Medicine and Health Sciences
Depositing User: Gani
Date Deposited: 16 Oct 2018 02:26
Last Modified: 16 Oct 2018 02:26
URI: http://ir.unimas.my/id/eprint/22028

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