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Visual sensation during phacoemulsification and intraocular lens implantation using topical and regional anesthesia

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Bibliographic Details
Title: Visual sensation during phacoemulsification and intraocular lens implantation using topical and regional anesthesia
Authors: Chung, CF, Lam, DSC, Lai, JSM
Source: Journal of Cataract and Refractive Surgery. 30:444-448
Publisher Information: Ovid Technologies (Wolters Kluwer Health), 2004.
Publication Year: 2004
Subject Terms: Male, 0301 basic medicine, Sensation - Physiology, Sensation, Anesthetics, Local - Administration & Dosage, Anesthesia, Local - Methods, Lidocaine - Administration & Dosage, 03 medical and health sciences, 0302 clinical medicine, Lens Implantation, Intraocular, Anesthesia, Conduction, Humans, Anesthesia, Conduction - Methods, Anesthetics, Local, Local - Methods, Anesthetics, Aged, Phacoemulsification, Intraocular, Local - Administration & Dosage, Visual Perception - Physiology, Lidocaine, Anesthesia, Conduction - Methods, 3. Good health, Visual Perception, Female, Lens Implantation, Anesthesia, Local
Description: To evaluate patients' visual sensations at different stages of phacoemulsification and posterior chamber intraocular lens (PC IOL) implantation under topical and regional anesthesia.Department of Ophthalmology, United Christian Hospital and Tseung Kwan O Hospital, Kowloon, Hong Kong, China.Seventy-six consecutive patients having phacoemulsification were randomized to a topical anesthesia group (n = 35) or regional anesthesia group (n = 41). The topical anesthesia group received lidocaine hydrochloride 2% gel (Xylocaine) and the regional anesthesia group, a peribulbar or retrobulbar injection of lignocaine 2%. The patients' visual sensations, including light and color sensations, shape of objects, and visual patterns, were evaluated at different stages of surgery.Two patients (4.9%) in the regional anesthesia group and none in the topical anesthesia group experienced total loss of light sensation throughout surgery (P =.50). There was a significant association between color perception and the type of anesthesia at stages 1 and 2 (P.05). The perception of objects and visual patterns had no association with the type of anesthesia at any stage (P>.05). Of all patients in the study, 56 (73.7%) reported color changes as surgery proceeded. Both groups saw waves, defined as curves with periodic fluctuations in amplitude, at all stages. The perception of some colors and a rectangular moving object was significantly associated with the type of anesthesia at some or all stages (P
Document Type: Article
Language: English
ISSN: 0886-3350
DOI: 10.1016/s0886-3350(03)00612-6
Access URL: https://pubmed.ncbi.nlm.nih.gov/15030839
https://www.sciencedirect.com/science/article/pii/S0886335003006126
https://europepmc.org/article/MED/15030839
http://hub.hku.hk/handle/10722/176416
http://hdl.handle.net/10722/176416
Rights: Elsevier TDM
Accession Number: edsair.doi.dedup.....f26ba8b0a0b87d556b49e8351913a6bf
Database: OpenAIRE
Description
Abstract:To evaluate patients' visual sensations at different stages of phacoemulsification and posterior chamber intraocular lens (PC IOL) implantation under topical and regional anesthesia.Department of Ophthalmology, United Christian Hospital and Tseung Kwan O Hospital, Kowloon, Hong Kong, China.Seventy-six consecutive patients having phacoemulsification were randomized to a topical anesthesia group (n = 35) or regional anesthesia group (n = 41). The topical anesthesia group received lidocaine hydrochloride 2% gel (Xylocaine) and the regional anesthesia group, a peribulbar or retrobulbar injection of lignocaine 2%. The patients' visual sensations, including light and color sensations, shape of objects, and visual patterns, were evaluated at different stages of surgery.Two patients (4.9%) in the regional anesthesia group and none in the topical anesthesia group experienced total loss of light sensation throughout surgery (P =.50). There was a significant association between color perception and the type of anesthesia at stages 1 and 2 (P.05). The perception of objects and visual patterns had no association with the type of anesthesia at any stage (P>.05). Of all patients in the study, 56 (73.7%) reported color changes as surgery proceeded. Both groups saw waves, defined as curves with periodic fluctuations in amplitude, at all stages. The perception of some colors and a rectangular moving object was significantly associated with the type of anesthesia at some or all stages (P
ISSN:08863350
DOI:10.1016/s0886-3350(03)00612-6