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目的:探讨用表面角膜镜片术治疗严重的Terrien＇s边缘角膜变性的效果方法:全部病例为严重的周边角膜环形或部份变薄,厚度小于正常1/3,用带2mm环形巩膜的全角膜板层移植片移植到去除上皮的角膜植床。手术前及手术后定期行角膜曲率,散瞳验光检查。结果:本组病例随访时间3～13个月,平均10个月。随访期间,镜片全部透明。术前角膜散光平均11.5D,术后散光平均3.9D。术后矫正视力除一例稍降外,3例有提高。术后合并症和其它表面角膜镜片术一样,主要是镜片下混浊。本组一例因层间上皮植入性混浊位于视轴区而作了镜片更换术。结论:角膜表面镜片术治疗严重Terrien＇s边缘角膜变性,具有操作简单、方便、有效。它不但增加病变区的角膜厚度,而且手术是在角膜表面操作,不损伤Bowman氏膜,使中央角膜透明度得以保护。同时也降低角膜的散光度。眼科学报1997;13:79～81。
Objective: To investigate the effect of surface keratomileusis on the treatment of severe Terrien’s marginal corneal degeneration: all cases were severe peripheral corneal ring or partial thinning, the thickness less than normal 1/3, the whole cornea with 2mm ring sclera The lamellar graft is transplanted to the corneal epithelium to remove the epithelium. Preoperative and postoperative periodic corneal curvature, mydriatic optometry. Results: The patients were followed up for 3 to 13 months with an average of 10 months. During the follow-up period, the lenses were all transparent. Preoperative corneal astigmatism average 11.5D, postoperative astigmatism average 3.9D. In addition to a slight reduction in postoperative corrected visual acuity, 3 cases improved. Postoperative complications and other surface corneal ophthalmoscopy, the main lens is turbid. A case of this group because of the interlayer epithelial opacification is located in the optic axis and lens replacement surgery. CONCLUSION: Corneal surface ophthalmoscopy is a safe, convenient, and effective method for the treatment of severe Corneal Degeneration. It not only increases the corneal thickness of the lesion, but also operates on the corneal surface without damaging the Bowman’s membrane, protecting the central corneal transparency. Also reduce corneal astigmatism. Journal of Ophthalmology 1997; 13: 79 ~ 81.