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Canadian Journal of Anesthesia, Vol 40, 635-657, Copyright © 1993 by Canadian Anesthesiologists' Society

ARTICLES

Regional anaesthesia for intraocular surgery

DH Wong
Department of Anaesthesia, Faculty of Medicine, University of British Columbia, Vancouver, Canada.

The role of anaesthetists in providing local anaesthesia for intraocular surgery has changed over the past decade. No longer confined to the interested few, more and more anaesthetists are involved in monitored care and/or are performing eye block anaesthesia. This review summarizes the information related to eye block anaesthesia. The salient features of the orbital anatomy important for safe conduct of eye block anaesthesia are described. The techniques for retrobulbar and peribulbar anaesthesia, including facial nerve blocks, anaesthetic mixture, types of needles, and softening the eye are presented. Complications such as retrobulbar haemorrhage, globe penetration/perforation, visual impairment, brainstem anaesthesia, muscle injury, and oculocardiac reflex are explored. The implications of anticoagulant therapy are examined. The choice between retrobulbar and peribulbar blocks and the role of anaesthetists are discussed.


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Copyright © 1993 by the Canadian Anesthesiologists' Society.