To the Editor: 1The review article on ophthalmic regional anesthesia by Nouvellon et al. was engaging, particularly the cadaver photographs elucidating the spread of local anesthetic agent within the orbit as well as the links to supplemental digital content. The authors are to be commended for their comprehensive discourse. However, their assertions regarding akinesia, reproducibility, and reb...

Progression in phacoemulsification techniques for cataract surgery[1-4] has also led to inevitable changes in the delivery of accompanying anesthesia from general to local modalities [5-7] i.e. retrobulbar, peribulbar, Sub-Tenon and topical anesthesia. General anesthesia is preferred for complicated intracapsular cataract extraction (ICCE) surgery as this technique involves significant manipula...

BACKGROUND No studies compared parenteral dexmedetomidine with its use as an adjuvant to ophthalmic block. We compared between adding dexmedetomidine to bupivacaine in peribulbar block and intravenous (IV) dexmedetomidine during peribulbar block for cataract surgery. MATERIALS AND METHODS A prospective, randomized, double-blind study on 90 patients for cataract surgery under peribulbar anesth...

PURPOSE To evaluate the efficacy of topical anesthesia with oxybuprocaïne 0.4% without intracameral lidocaïne as an alternative to peribulbar or retrobulbar anesthesia in cataract surgery. METHODS Fifty-eight patients (eighty-two eyes) were included in this study. All patients received topical anesthesia with oxybuprocaïne 0.4%. No intracameral lidocaïne was used at the start of the intervent...

Ocular regional anesthesia can be accomplished with either a peribulbar or retrobulbar approach. Each has advantages and disadvantages. Complications can be vision-threatening or life-threatening. Positioning the eye in neutral gaze when retrobulbar block is executed and using a needle no longer than 31 mm are effective strategies to reduce the incidence of serious complications.

BACKGROUND The standard of care for penetrating keratoplasty (PKP) is either retrobulbar or peribulbar anesthesia combined with seventh cranial nerve akinesia or general anesthesia. These methods are known to be associated with rare but potentially serious adverse ocular and systemic events. PURPOSE To determine the safety and efficacy of combined topical and intracameral anesthesia in additi...

BACKGROUND AND OBJECTIVES Peribulbar anesthesia can reduce ocular blood flow (OBF) by increasing intraocular pressure (IOP) or due to the action of drugs. Ropivacaine has low toxicity and intrinsic vasoconstrictive properties, yet to be proven on the ocular vasculature. Measurements of ocular pulse amplitude (OPA) allow the indirect evaluation of the OBF. The objective of the present study was ...