Aldebasi Yousef H, Aly Salah M, Ahmad Muhammad I, Khan Amjad A
Department of Optometry, College of Applied Medical Sciences, Qassim University, Qassim, Kingdom of Saudi Arabia. Tel. +966 (16) 3801266.Fax. +966 (16) 3801628. E-mail:
Saudi Med J. 2013 Nov;34(11):1156-60.
To study the incidence and risk factors of the bacteria causing infectious keratitis among patients in Qassim province of Saudi Arabia.
This is a cross sectional study conducted at the Department of Optometry, College of Applied Medical Sciences, Qassim University, Qassim, Kingdom of Saudi Arabia from December 2010 to May 2011. One hundred patients suspected of keratitis were subjected to clinical examinations. A total of 115 corneal swabs from these cases were collected under aseptic conditions for bacteriological examinations.
Culture of the corneal swabs revealed Pseudomonas aeruginosa (25.2%), Staphylococcus aureus (15.7%), and unclassified bacteria (13.9%). However, 52 swabs of infectious keratitis cases (45.2%) were negative to bacteria. Contact lens wearing (44.4%) was the most common risk factor among the examined patients, followed by corneal trauma (21.7%), ocular surface disease (11.3%), and corneal surgery (7%). No significant correlation was observed between systemic risk factor and clinical presentation.
It could be concluded that infectious keratitis was mostly due to Pseudomonas aeruginosa and Staphylococcus aureus. Therefore, strict measures are recommended to control and treat infectious keratitis to avoid visual complications.
研究沙特阿拉伯卡西姆省患者中引起感染性角膜炎的细菌的发病率及危险因素。
这是一项于2010年12月至2011年5月在沙特阿拉伯王国卡西姆市卡西姆大学应用医学科学学院验光系进行的横断面研究。对100例疑似角膜炎患者进行了临床检查。在无菌条件下从这些病例中总共采集了115份角膜拭子进行细菌学检查。
角膜拭子培养显示铜绿假单胞菌（25.2%）、金黄色葡萄球菌（15.7%）和未分类细菌（13.9%）。然而，52份感染性角膜炎病例的拭子（45.2%）细菌检测为阴性。在所检查的患者中，佩戴隐形眼镜（44.4%）是最常见的危险因素，其次是角膜外伤（21.7%）、眼表疾病（11.3%）和角膜手术（7%）。未观察到全身危险因素与临床表现之间存在显著相关性。
可以得出结论，感染性角膜炎主要由铜绿假单胞菌和金黄色葡萄球菌引起。因此，建议采取严格措施控制和治疗感染性角膜炎以避免视力并发症。
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