Related Experiment Video
Updated: Jul 15, 2026

Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
Published on: February 15, 2022
A comparison of topical anaesthesia and retrobulbar block for cataract surgery
D M Jolliffe1, M N Abdel-Khalek, A C Norton
1Department of Anaesthesia, Pilgrim Hospital, Boston, Lincolnshire, UK.
Abstract:
It is possible to remove a cataract and insert an intraocular lens under topical anaesthesia (lignocaine 4% preservative-free eye drops) with a van Lint block. This study was performed to evaluate this anaesthetic technique. Nineteen patients having cataract surgery with topical anaesthesia and a van Lint block were compared with 21 patients who received a retrobulbar block and a van Lint block. There were no significant differences between the two groups in patient characteristics, mean cardiovascular stress of the procedure, experience of pain during the operation or willingness to have the same anaesthetic technique again. Topical anaesthesia with a van Lint block is feasible for cataract surgery and is potentially safer than other regional anaesthetic techniques.
Related Concept Videos
Local Anesthetics: Common Agents and Their Applications
Cocaine is an ester of benzoic acid and methylecgogine. It is used to anesthetize and vasoconstrict locally. Currently, it is used primarily for topical applications. It is beneficial for surgeries on the upper respiratory tract, providing anesthesia and shrinking the mucosa. Cocaine in the form of cocaine hydrochloride is...
Local Anesthetics: Clinical Application as Surface, Infiltration, and Conduction Block Anesthesia
Local Anesthetics: Clinical Application as Spinal Anesthesia
Local Anesthetics: Clinical Application as Epidural Anesthesia
Since epidural anesthetics can be infused through an epidural catheter, all types of drugs, including short-acting ones, can be administered. Chloroprocaine and lidocaine are examples of short and long-duration anesthetics, respectively. Bupivacaine...
Local Anesthetics: Clinical Application as Intravenous Regional Anesthesia
One of the advantages of...
General Anesthesia: Overview
General anesthesia induces unconsciousness in the whole body, while the others target specific areas or sensations. It is administered to minimize adverse effects, maintain...

