摘要
目的了解不同大小的翼状胬肉的角膜表面屈光状况方法对我科80只眼大小不同的翼状胬肉进行裂隙灯显微镜记录翼状胬肉横径(胬肉角膜缘与其顶端距离)、竖径(跨过角巩膜缘时的弧长)及面积(横径X竖径/2),同时应用角膜地形图分析,记录simK(最徒径与最平径,散光值及轴向)、角膜中心屈光度、平均屈光度、以胬肉尖部为中心的扁平区内的最小屈光波(P-屈光波)、角膜散光并将上述数据进行统计分析。结果 70只眼单侧翼状胬肉长度和面积与散光呈正相关。10只眼双侧(鼻侧及颞侧长度<4 mm)均生长胬肉的患者胬肉长度和面积与散光无相关性。但总屈光力较正常屈光力下降。结论翼状胬肉对角膜屈光有明显的影响,角膜地形图对此有很好的评估作用。
Objective To study the corneal refractive changes in pterygium.Methods Pterygia length,width and area was measured by slit-lamp microscope in 80 eyes with primary pterygium.Central corneal power,mean corneal power,the flattest meridional power,the astigmatism of the pterygium,and SIK including（the biggest meridional power,the flattest meridional power and the refractive location） were recorded.Pterygium-associated flattening was also recorded as the refractive power and its location.Results The length and size of those had a positive correlation with corneal refraction in 70 eyes with one side pterygium.There was no relation between the length and size of corneal refraction in 10 eyes with two sides pterygium（length〈 4 mm）,while the corneal refraction decreased.Conclusion Pterygium can change the corneal refraction and corneal topography is an satisfactory method to evaluate these changes.
出处
《临床眼科杂志》
2012年第2期134-135,共2页
Journal of Clinical Ophthalmology
关键词
翼状胬肉
角膜地形图
屈光变化
Pterygium
Corneal topography
Refractive changes
