Articles: PDF OnlySub-Tenon’s anesthesia with a retained catheter in ocular surgery of longer durationBehndig, Anders MD*Author Information From the Department of Ophthalmology, Norrlands University Hospital, Umeå, Sweden. *Reprint requests to Anders Behndig, MD, Department of Ophthalmology, Norrlands University Hospital, Umed S-901 87, Sweden. The author has no financial interest in any equipment mentioned. Supported in part by a grant from Carmen and Bertil Regner’s fund. Journal of Cataract & Refractive Surgery: October 1998 - Volume 24 - Issue 10 - p 1307-1309 doi: 10.1016/S0886-3350(98)80219-8 Buy Metrics Abstract A sub-Tenon’s anesthesia technique was developed that is suitable for surgical procedures of longer duration. After application of a small amount of anesthetic agent in the standard manner, a thin polyethylene catheter is introduced under Tenon’s capsule and fixated. The catheter is used to inject more anesthetic agent during the procedure. This anesthesia regimen provides unlimited time for surgery without the risks of losing anesthetic effect and without using a potentially toxic, long-term local anesthetic agent. © Williams & Wilkins 1998. All Rights Reserved.