A method of controlled retrobulbar anesthesia was used in 20 patients undergoing extracapsular cataract extraction with intraocular lens implantation. The method includes: leaving the pupil undilated before anesthesia; applying topical anesthetic to the conjunctiva; injecting about 0.25 ml of anesthesia through the non-sensitive conjunctiva into the muscle cone, then waiting until the pupil becomes dilated before injecting an additional 1.5 ml; injecting 0.25 ml anesthesia under the conjunctiva and into the tendon of the superior rectus muscle; and applying short-acting mydriatics after the injection. This method is almost painless and does not result in increased intraocular pressure after injection. Massage or compression to soften the eye is not required, and there is excellent anesthesia and akinesia.
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Schweiz Arch Tierheilkd
November 2024
Pferdeklinik Tillysburg, Sankt Florin, Austria.
A retrospective data analysis was performed on 17 eyes from 13 horses which underwent a sub-Tenon's injection to facilitate phacoemulsification or pars plana vitrectomy under general anesthesia between 2018 and 2022. All procedures were performed by the same veterinary ophthalmologist. Seven eyes received a sub-Tenon's dose of 7 ml lidocaine (XylocainÒ, 2 % lidocaine hydrochloride, Germany, Aspen Germany GmbH), and 10 eyes received 7 ml mepivacaine (MepinaestÒ purum 2 %, mepivacaine hydrochloride, Switzerland, Gebro Pharma GmbH).
View Article and Find Full Text PDFEar Nose Throat J
September 2024
Department of Otolaryngology-Head and Neck Surgery, David Geffen School of Medicine of the University of California Los Angeles, Los Angeles, CA, USA.
PLoS One
August 2024
Department of Surgery, Faculty of Veterinary Medicine, New Valley University, El-kharga, New Valley, Egypt.
Front Vet Sci
June 2024
Department of Surgery, Faculty of Veterinary Medicine, New Valley University, Al-Kharga, Egypt.
J Am Vet Med Assoc
May 2024
1Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI.
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