Lustbader J M, Lemp M A
Center for Sight, Georgetown University Medical Center, DC 20007.
Ophthalmic Surg. 1990 Jun;21(6):416-9.
We describe a surgical technique for correction of astigmatism following penetrating keratoplasty performed after all keratoplasty sutures have been removed. Two relaxing incisions of 3 clock hours, at 3/4 depth, 0.5 mm inside the keratoplasty wound are used in combination with two sets of three compression sutures placed 90 degrees from the incisions. Selective removal of the compression sutures allows for a graded reduction in overcorrection. With this technique, a mean preoperative astigmatism in 10 patients of 14.25 diopters was reduced to 6.33 D 3 months postoperatively (P less than .002). There were no intraoperative or postoperative complications such as inadvertent perforation, wound dehiscence, or graft rejection.
我们描述了一种在穿透性角膜移植术后所有角膜移植缝线拆除后矫正散光的手术技术。在角膜移植伤口内0.5毫米处，于3/4深度制作两个3个钟点的松解切口，并与两组与切口呈90度放置的三根压迫缝线联合使用。选择性拆除压迫缝线可实现过矫的分级降低。采用该技术，10例患者术前平均散光为14.25屈光度，术后3个月降至6.33 D（P小于0.002）。没有发生术中或术后并发症，如意外穿孔、伤口裂开或移植排斥反应。
