Natalia M Binczyk, Heather Burnett, Christopher J Rudnisky
{"title":"内窥镜利多卡因可以减轻白内障手术的疼痛，但效果甚微。","authors":"Natalia M Binczyk, Heather Burnett, Christopher J Rudnisky","doi":"10.1016/j.jcjo.2025.08.007","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>To assess the effectiveness of intracameral lidocaine during routine cataract surgery.</p><p><strong>Design: </strong>Prospective, single-blinded, randomized, controlled trial.</p><p><strong>Participants: </strong>Adult patients undergoing routine phacoemulsification cataract extraction in a chartered surgical facility in Edmonton, Alberta, Canada, were enrolled in the study.</p><p><strong>Methods: </strong>Patients were randomized to receive intracameral lidocaine or control (intracameral balanced salt solution). Patients rated their pain at the time of intracameral injection and at the conclusion of the surgery, on a scale from 0 to 10.</p><p><strong>Results: </strong>The study included 106 eyes from 82 patients. The overall pain score was lower (p = 0.004) in the lidocaine group (0.43 ± 0.94/10) than in the control group (0.72 ± 2.79/10). Pain was higher (p = 0.002) in more myopic (1.80 ± 4.04/10) than less myopic patients (0.50 ± 1.67/10). There was no difference in pain experienced at the time of injection (p = 0.270). There was no difference in same-day postoperative logMAR visual acuity (p = 0.837).</p><p><strong>Conclusions: </strong>Intracameral lidocaine reduces pain during cataract surgery, but the effect is small; it is most effective in myopic patients.</p>","PeriodicalId":9606,"journal":{"name":"Canadian journal of ophthalmology. Journal canadien d'ophtalmologie","volume":" ","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Intracameral lidocaine reduces pain in cataract surgery, but only a little bit.\",\"authors\":\"Natalia M Binczyk, Heather Burnett, Christopher J Rudnisky\",\"doi\":\"10.1016/j.jcjo.2025.08.007\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Objective: </strong>To assess the effectiveness of intracameral lidocaine during routine cataract surgery.</p><p><strong>Design: </strong>Prospective, single-blinded, randomized, controlled trial.</p><p><strong>Participants: </strong>Adult patients undergoing routine phacoemulsification cataract extraction in a chartered surgical facility in Edmonton, Alberta, Canada, were enrolled in the study.</p><p><strong>Methods: </strong>Patients were randomized to receive intracameral lidocaine or control (intracameral balanced salt solution). Patients rated their pain at the time of intracameral injection and at the conclusion of the surgery, on a scale from 0 to 10.</p><p><strong>Results: </strong>The study included 106 eyes from 82 patients. The overall pain score was lower (p = 0.004) in the lidocaine group (0.43 ± 0.94/10) than in the control group (0.72 ± 2.79/10). Pain was higher (p = 0.002) in more myopic (1.80 ± 4.04/10) than less myopic patients (0.50 ± 1.67/10). There was no difference in pain experienced at the time of injection (p = 0.270). There was no difference in same-day postoperative logMAR visual acuity (p = 0.837).</p><p><strong>Conclusions: </strong>Intracameral lidocaine reduces pain during cataract surgery, but the effect is small; it is most effective in myopic patients.</p>\",\"PeriodicalId\":9606,\"journal\":{\"name\":\"Canadian journal of ophthalmology. Journal canadien d'ophtalmologie\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2025-09-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Canadian journal of ophthalmology. Journal canadien d'ophtalmologie\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1016/j.jcjo.2025.08.007\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"OPHTHALMOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Canadian journal of ophthalmology. Journal canadien d'ophtalmologie","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1016/j.jcjo.2025.08.007","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OPHTHALMOLOGY","Score":null,"Total":0}
Participants: Adult patients undergoing routine phacoemulsification cataract extraction in a chartered surgical facility in Edmonton, Alberta, Canada, were enrolled in the study.
Methods: Patients were randomized to receive intracameral lidocaine or control (intracameral balanced salt solution). Patients rated their pain at the time of intracameral injection and at the conclusion of the surgery, on a scale from 0 to 10.
Results: The study included 106 eyes from 82 patients. The overall pain score was lower (p = 0.004) in the lidocaine group (0.43 ± 0.94/10) than in the control group (0.72 ± 2.79/10). Pain was higher (p = 0.002) in more myopic (1.80 ± 4.04/10) than less myopic patients (0.50 ± 1.67/10). There was no difference in pain experienced at the time of injection (p = 0.270). There was no difference in same-day postoperative logMAR visual acuity (p = 0.837).
Conclusions: Intracameral lidocaine reduces pain during cataract surgery, but the effect is small; it is most effective in myopic patients.
期刊介绍：
Official journal of the Canadian Ophthalmological Society.
The Canadian Journal of Ophthalmology (CJO) is the official journal of the Canadian Ophthalmological Society and is committed to timely publication of original, peer-reviewed ophthalmology and vision science articles.
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