Abstract：
Ocular chemical burns are a significant cause of visual impairment. This study aims to characterize ocular chemical burns in a southwestern Colombia referral center and identify associated factors with low vision. A cross-sectional study was carried out based on the review of medical records of patients diagnosed with chemical eye burns who consulted the emergency ophthalmology service between January 2016 and December 2019. Descriptive statistics were performed. Associations with low vision (Best Corrected Visual Acuity, BCVA, ≥20/70 in Snellen chart) in the last follow-up appointment were identified using a multivariate logistic regression with odds ratios (OR) and 95% confidence intervals (95% CI). 219 eyes affected by chemical burns were identified from 174 patients with a mean age of 39 years (SD±20), out of which 57.5% (n=100) were men. We ran a multivariate model adjusted by sex, eye wash, type of chemical, and Dua\'s classification. We found that the odds of low vision for patients without eyewash before the consult were three times the odds of those who had it (Adjusted OR [aOR]=3.5, 95%CI=1.3-9.4) and almost five times for those with Dua\'s classification greater than 1 (aOR=4.7, 95%CI=1.7-12.9). The ocular chemical burns reported in this study occurred more in young people of productive age. Acids were the principal causal agent. The association between lack of early management and the severity of the chemical burn with low vision has been highlighted. Ocular burns remain a relevant cause of consultation on the ophthalmology service in Cali, and prevention strategies are required.
摘要：
眼部化学烧伤是视力损害的重要原因。这项研究旨在表征哥伦比亚西南部转诊中心的眼部化学烧伤，并确定与低视力相关的因素。根据对2016年1月至2019年12月期间咨询急诊眼科服务的被诊断为化学眼烧伤的患者的医疗记录的审查，进行了一项横断面研究。进行描述性统计。与低视力的关联（最佳矫正视力，BCVA,Snellen图表中≥20/70）在最后一次随访中使用多变量逻辑回归与比值比（OR）和95％置信区间（95％CI）进行鉴定。从174名平均年龄39岁（SD±20）的患者中发现了219只受化学烧伤影响的眼睛，其中57.5%(n=100)是男性。我们运行了一个按性别调整的多变量模型，洗眼,化学类型,和Dua的分类。我们发现，在咨询前没有洗眼的患者低视力的几率是接受过洗眼的患者的三倍（调整后的OR[aOR]=3.5，95CI=1.3-9.4），而Dua分类大于1的患者的几率几乎是五倍（aOR=4.7，95CI=1.7-12.9）。这项研究中报道的眼部化学烧伤更多发生在生产年龄的年轻人中。酸是主要的致病因素。强调了缺乏早期管理与低视力化学烧伤的严重程度之间的关联。眼部烧伤仍然是卡利眼科服务咨询的相关原因，需要采取预防策略。
