Retrobulbar versus systemic application of morphine during titratable regional anesthesia via retrobulbar catheter in intraocular surgery.

Hemmerling, T M; Budde, W M; Koppert, W; Jonas, J B · Anesth Analg · 2000

rct · Level II

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Abstract

We investigated the effects of morphine on postoperative pain in patients undergoing intraocular surgery using a new indwelling catheter. Although morphine produced central analgesic effects, there was no evidence for the involvement of peripheral opioid receptors in the modulation of ocular pain.

Medical subject headings