Bayramlar Hüseyin, Dağlioğlu Mutlu C, Borazan Mehmet
Inönü University, Turgut Ozal Medical Center, Department of Ophthalmology, Malatya, Turkey.
J Cataract Refract Surg. 2003 Apr;29(4):723-8. doi: 10.1016/s0886-3350(02)01821-7.
To evaluate the effect of limbal relaxing incisions (LRIs) in the treatment of primary mixed astigmatism and mixed astigmatism after cataract surgery.
Department of Ophthalmology, Inönü University, Malatya, Turkey.
Limbal relaxing incisions were performed to correct astigmatism in 37 eyes of 26 patients with mixed astigmatism. Twenty-four eyes had primary astigmatism, and 13 eyes had astigmatism after cataract surgery. The length, number, and depth of the incisions were determined using the Gills and Gayton nomogram. The manifest refractive astigmatism was measured preoperatively and 1 day, 1 week, and 1, 3, 6, and 12 months postoperatively. Surgically induced astigmatism using the vector method, preoperative and postoperative uncorrected visual acuity (UCVA), and best spectacle-corrected visual acuity (BSCVA) were evaluated. Follow-up was at least 6 months in all cases.
The mean preoperative and postoperative refractive astigmatism was 3.31 diopters (D) +/- 1.50 (SD) and 1.59 +/- 1.28 D, respectively (P <.001). The mean absolute change in refractive astigmatism was 1.72 +/- 0.81 D. No patient lost lines of UCVA or BSCVA. The safety index was 1.21 and the efficacy index, 0.88. The mean preoperative and postoperative UCVA was 0.29 +/- 0.22 and 0.54 +/- 0.31, respectively (P =.0001) and the mean BSCVA, 0.61 +/- 0.30 and 0.74 +/- 0.30, respectively (P =.0001). The mean vectorial magnitude was 2.32 +/- 1.36 D at the last follow-up. There were no serious postoperative complications.
Limbal relaxing incisions are a simple, safe, and effective method to correct primary mixed astigmatism and mixed astigmatism after cataract surgery.
评估角膜缘松解切口（LRI）治疗原发性混合性散光及白内障术后混合性散光的效果。
土耳其马拉蒂亚伊诺努大学眼科。
对26例混合性散光患者的37只眼行角膜缘松解切口以矫正散光。其中24只眼为原发性散光，13只眼为白内障术后散光。切口的长度、数量和深度根据吉尔斯和盖顿列线图确定。术前及术后1天、1周、1、3、6和12个月测量明显屈光性散光。采用矢量法评估手术诱导散光、术前及术后未矫正视力（UCVA）和最佳眼镜矫正视力（BSCVA）。所有病例随访至少6个月。
术前及术后平均屈光性散光分别为3.31屈光度（D）±1.50（标准差）和1.59±1.28 D（P<.001）。屈光性散光的平均绝对变化为1.72±0.81 D。无患者UCVA或BSCVA下降。安全指数为1.21，有效指数为0.88。术前及术后平均UCVA分别为0.29±0.22和0.54±0.31（P =.0001），平均BSCVA分别为0.61±0.30和0.74±0.30（P =.0001）。最后一次随访时平均矢量大小为2.32±1.36 D。无严重术后并发症。
角膜缘松解切口是矫正原发性混合性散光及白内障术后混合性散光的一种简单、安全且有效的方法。
