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Effect of the volume of anaesthetic solutions and patient"s age on the efficacy of retrobulbar anaesthesia

Poster Details

First Author: E.Mohamed Mostafa EGYPT

Co Author(s):    A. Mounir              

Abstract Details


To assess how the volume of injection of local anesthetic solutions and the age of the patient affected ocular akinesia in retrobulbar anesthesia (RBA).


Sohag University Hospital, Egypt


395 patients undergoing RBA for cataract surgery were enrolled in a prospective masked trial. They were allocated randomly to receive 2 ml, anesthetic solution (group 1, 202patients) or 4 ml (group 2, 193 patients). Each group was then subdivided according to the age of the patients <45 years and ?45yrs (1a, 1b, 2a, 2b respectively). The amount of akinesia was estimated after RBA. Data were also collected on age, sex, and any side effects of the intervention.


After RBA horizontal and vertical eye motility was slightly lower in group A than group B. Persistent motility was found in 28 patients in group A and 20 in group B. Median horizontal and vertical motility was 0 mm in both groups. Nine patients in group A and five in group B had corneal sensitivity persisting after RBA.


This comparison of different injection anaesthetic volumes showed no significant differences regarding bulbar akinesia after RBA nor was it related to age.

Financial Disclosure:


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