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眼眶外傷,可大可小!
 

眼眶外傷,可大可小!

眼瞼是保護眼球的第一道防線,由皮膚、肌肉、瞼板和結膜組成;而眼眶則是保護眼球的骨腔,眼眶內除了眼球,還有肌肉、血管、神經線、脂肪、淋巴、骨膜等軟組織,為眼球受力時作緩衝。

常見導致眼瞼外傷之原因包括工傷、交通意外、運動、打鬥撞擊等;至於小童方面,被動物咬傷也是主因。處理眼瞼外傷,首先要檢查眼球是否有受傷,若眼球有破裂情況,必先修補眼球,再處理眼瞼位置。手術時要仔細檢查傷口,傷口是否有埋藏任何異物如玻璃碎片、樹枝、雜草、污物等, 必須先妥善清理,再評估破裂位置是否有明顯組織流失。若於動物咬傷的情況下,有時因一大部分眼瞼被咬走,便需以特別方法如皮瓣、肌肉瓣、甚至自體組織移植來重整眼簾;若裂口位置沒有組織流失,最重要是把瞼緣對齊縫好,以減少術後眼瞼凹凸不平。瞼緣若有凹凸,除了影響外觀外,更會影響淚膜的分布,因而造成角膜出現局部乾燥點,可引致角膜破裂受損。

 

作者為香港眼科醫院眼科專科醫生

李琬微醫生 DR. LI YUEN MEI, EMMY

資料來源: am730 11-03-2016

選文來自: 香港E大夫 / 醫大夫

 

 

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