Rodriguez-Coleman H, Spaide R
Department of Ophthalmology, New York Presbyterian-Columbia, Manhattan Eye, Ear and Throat Hospital, New York, USA.
Ophthalmol Clin North Am. 2001 Dec;14(4):573-9. doi: 10.1016/s0896-1549(05)70257-1.
As a whole, the complication rate of retrobulbar and peribulbar injections is low, especially if done correctly (see appendix I). Side effects, however, can be extremely serious, and alternative methods such as topical or sub-Tenon's anesthesia should be considered (see appendix II), particularly when evaluating monocular patients with high-risk characteristics.