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暴露性角膜炎

来源:华人健康网 | 发布时间:2011-11-06 04:17:14 | www.chinesejk.com
[概述]

因眼睑闭合不全,致使部分角膜暴露,不能获得泪液湿润,引起乾燥,上皮脱落进而继发感染的角膜病变称为暴露性角膜炎。角膜暴露的常见原因有眼睑缺损、眼球突出、疤痕性眼睑外翻及兔眼,面神经麻痹、深麻醉或深昏迷等。

[症状体症]

1.暴露部位的结膜充血、肥厚;2.下方角、结膜乾燥、混浊;3.继发感染,形成角膜溃疡甚至穿孔。

[诊断依据]

1.各种原因所致的眼睑闭合不全,角膜暴露。2.暴露的角膜、结膜乾燥,角膜上皮脱落甚至溃疡形成。

[治疗原则]

1.治疗原发病,如甲亢、面神经麻痹、眶内肿瘤等。2.对症及预防感染。轻者涂大量抗菌素眼膏或滴用人工泪液,重者行眼眶缝合术。

[疗效评价]

[专家提示]

本病患者因角膜暴露,极为不适。要在治疗原发病的同时,随时注意防止角膜乾燥,如在睡眠前,一定要涂大量的抗菌素眼膏,防止角膜乾燥和感染。必要时医生可以将眼睑暂时缝合,既在睑裂中央留缝隙看东西,又保持了角结膜湿润。

(编辑:阳阳 )

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