Department of Emergency Medicine, Loma Linda University, Loma Linda, CA.
Department of Emergency Medicine, University of California San Diego, San Diego, CA.
Ann Emerg Med. 2024 May;83(5):477-489. doi: 10.1016/j.annemergmed.2024.01.004. Epub 2024 Feb 6.
The management of corneal abrasions has largely excluded dispensing topical local anesthetics for home use due to concern for corneal toxicity. We have reviewed and critically appraised the available literature evidence regarding the use of topical anesthetics in patients with simple corneal abrasions. Using sequential Delphi review, we have developed these clinical guidelines. Herein are evidentiary summaries and consensus recommendations for 8 specific relevant questions. Our key observation is that for only simple corneal abrasions, as diagnosed and treated in accordance with the full protocol described herein, it appears safe to prescribe or otherwise provide a commercial topical anesthetic (ie, proparacaine, tetracaine, oxybuprocaine) for use up to every 30 minutes as needed during the first 24 hours after presentation, as long as no more than 1.5 to 2 mL total (an expected 24-hour supply) is dispensed and any remainder is discarded after 24 hours. Importantly, although published findings suggest absent harm for short courses, more rigorous studies with a greater cumulative sample size and ophthalmologic follow-up are needed.
由于担心角膜毒性,角膜擦伤的治疗在很大程度上排除了局部表面麻醉剂的家庭使用。我们回顾并批判性地评估了关于在单纯性角膜擦伤患者中使用局部麻醉剂的现有文献证据。使用顺序德尔菲审查,我们制定了这些临床指南。本文提供了 8 个具体相关问题的证据总结和共识建议。我们的主要观察结果是,对于仅有的单纯性角膜擦伤,根据本文所述的完整方案进行诊断和治疗,在就诊后 24 小时内,只要不超过 1.5 至 2 毫升(预计 24 小时的供应量),并且在 24 小时后丢弃任何剩余的药物,那么在就诊后的头 24 小时内,按需每 30 分钟使用一次处方或其他方式提供的商业局部麻醉剂(即丙胺卡因、丁卡因、氧苯卡因)似乎是安全的。重要的是,尽管已发表的研究结果表明短期使用无危害,但需要进行更多具有更大累积样本量和眼科随访的更严格的研究。