论文部分内容阅读
目的 :探讨无结膜切口小梁切除术后角膜散光的演变结果。方法 :原发性青光眼 6 0眼 ,其中 30眼行无结膜切口小梁切除术 (A组 ) ,30眼行常规小梁切除术 (B组 ) ,于术前、术后 5天、6 0天和 180天测量角膜屈光度。结果 :A组术后 5天角膜散光为 (1.96± 1.13)D ,较术前增加 1.0 8D ,且轴向规律性较差。B组术后 5天角膜散光为 (1.45± 0 .37)D ,较术前增加 0 .82D。两组术后 6 0天散光均明显减小 ,180天时已接近术前水平。结论 :无结膜切口小梁切除术可引起明显的术后角膜散光 ,且轴向规律性较差 ,但不对视功能产生远期影响
Objective: To investigate the evolution of corneal astigmatism after conjunctival incision trabeculectomy. Methods: Sixty eyes of primary glaucoma were involved, of which 30 had no conjunctival incision tracheotomy (group A) and 30 had trabeculectomy (group B). Preoperative and postoperative 5 days, 60 Corneal refraction was measured on days and 180 days. Results: The corneal astigmatism was (1.96 ± 1.13) D 5 days after operation in group A, 1.08D higher than that before operation, and axial regularity was poor. In group B, corneal astigmatism was (1.45 ± 0.37) D 5 days postoperatively, increasing by 0.82D compared with that before operation. The astigmatism of both groups was significantly decreased 60 days after operation, and was close to preoperative level at 180 days. Conclusion: No conjunctival incision trabeculectomy can cause significant postoperative corneal astigmatism, and the axial regularity is poor, but does not have long-term effects on visual function