摘要
本文总结6年来共转性内斜视59例108眼手术前后角膜散光的变化。手术分内直肌后退和内直肌后退加外直肌缩短两种。前者减弱内直肌对角膜向后的水平牵张力,使角膜的水平曲率半径增加而产生顺规散光,该肌后退量越大,散光度增加越明显;后者由于内直肌的张力明显强于外直肌,故术后仍引起角膜水平曲率半径的增大而导致顺规散光度的增加。
The cornea astigmatism changes of 108 concomitant esotropia eyes (59 cases)after operation were studied. The operation was medial rectus recession in one group and medial rectus recession plus lateral rectus resection in the other group.In the former, the direct regular astigmatism developed from the increase of the horizontal curvature redius of the cornea. The more the muscle recessed, the higher the astigmatism degree increased. In the latter, the tension of the medial rectus was stronger than that of lateral rectus muscle, so that direct regular astigmatism degree developed postoperatively.
出处
《眼外伤职业眼病杂志》
北大核心
1989年第1期19-20,共2页
Journal of Injuries and Occupational Diseases of the Eye with Ophthalmic Surgeries
