长期配戴角膜接触镜引起的角膜基质深层混浊

来源 :国外医学.眼科学分册 | 被引量 : 0次 | 上传用户:ssttll
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配戴角膜接触镜能引起多种角膜并发症,经常发现角膜水肿及浅层角膜病变,但有时也发现较深层的基质病变。本文以戴用HEMA(甲基丙烯酸羟乙酯)或PMMA(聚甲基丙烯酸甲酯)镜片并已在角膜基质深层引起白色混浊的32例(最长戴镜达19年),进行讨论。从1981至1988年,作者等曾检查32例戴角膜接触镜患者(其中2例为单眼戴接触镜),在角膜基质层邻近后弹力层的中央有薄层雾状混浊,均经眼科常规检查,进行裂隙灯及内皮摄影,每眼选用3张最好的内皮照片,记录细胞密度(细胞数/mm~2。),按Yee等描述的方法,主观评定所选用3张照片之细胞平均面积的变化系数。经内皮摄影的19例的细胞密度从 Wear contact lenses can cause a variety of corneal complications, often found in corneal edema and superficial corneal lesions, but sometimes found that deeper matrix lesions. This article discusses the use of HEMA (hydroxyethyl methacrylate) or PMMA (polymethyl methacrylate) lenses and has caused white opacities in the corneal stroma deep in 32 cases (up to 19 years wearing glasses). From 1981 to 1988, the authors examined 32 patients with corneal contact lenses (2 of them were monocular contact lenses) and had a thin layer of hazy haze at the center of the posterior elastic layer in the corneal stroma, both routinely examined by ophthalmology , Slit lamp and endothelium photography were performed. Three best endothelium photos were taken for each eye, and the cell density (number of cells / mm ~ 2) was recorded. According to the method described by Yee et al., The average cell area The coefficient of variation. The endothelial density of 19 patients with endothelium was measured
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