不同翼状胬肉手术对角膜屈光影响的研究

Study on the effect of different surgeries for pterygium on corneal refraction

目的研究单纯翼状胬肉切除与翼状胬肉切除联合角膜缘干细胞移植两种手术术后角膜屈光的改变。方法单侧翼状胬肉38例（54只眼），随机分为2组，行单纯翼状胬肉切除者16例（21只眼）为A组；行翼状胬肉切除联合角膜缘干细胞移植者22例（33只眼）为B组。两组均行术前及术后10d、1月的裸眼视力、角膜曲度和角膜散光的检测，进行对比分析。结果A、B两组术后10d、1月的裸眼视力、角膜曲度和角膜散光与术前的差异有统计学意义。而两组相比，术后10d、术后1月的差异无统计学意义。结论翼状胬肉手术可使角膜屈光改变。术后1月内，单纯翼状胬肉切除和翼状胬肉切除联合角膜缘干细胞移植对角膜屈光的影响相仿。

Objective To study the changes of corneal refraction after simple pterygium excision and pterygium excision with limbal stem cell transplantation.Methods The 38 patients （54 eyes）of unilateral pterygium were selected in random.They were divided into 2 groups： simple pterygium excision was taken in A group （16 cases and 21 eyes）,pterygium excision with limbal stem cell transplantation was taken in B group （22 cases and 33 eyes）.They all have results of naked visual acuity,corneal curvature and corneal astigmatism on pre-surgery,post-surgery 10 day and post-surgery 1 month.At last,we constrasted these results.Results In group A and B, the results of naked visual acuity, comeal curvature and corneal astigmatism on post-surgery 10 day and post-surgery 1 month were different to the results on pre-surgery in statistics.While on post-surgery 10 day or on post-surgery 1 month the changes had no statistic difference between Group A and Group B.Conclusions The surgeries for pterygium can change the corneal refraction.The effect of simple pterygium excision is similar to the effect of pterygium excision with limbal stem cell transplantation on corneal refraction in 1 month.