Krasnov M M, Avetisov S E, Nazarova N N, Nikol'skaia G M
Vestn Oftalmol. 1989 Sep-Oct;105(5):3-8.
The authors analyze the first experience with surgical correction of corneal astigmatism by sectorial keratorrhaphy (SKR). The operation consists in sewing an intralamellar nylon (9.00) suture perpendicular to poorly refracting meridian of the cornea. The mechanism of alteration of the corneal curvature resultant from SKR is similar to that in the known wedge-shaped resection of the cornea. The technique of surgery has been mastered in experiments with 12 isolated cadaver eyes. Morphologic studies of 16 eyes of 8 rabbits have lead the authors to a conclusion that prolonged presence of monofilament sutures in the corneal stroma induces the minimal changes in the adjacent tissues, these changes not augmenting over the follow-up period. 15 operations were performed in clinic, the follow-up periods were 4 to 14 mos. The data of the subjective examination of the refraction indicate that corneal astigmatism has reduced by 0.5 to 5.5 diopters, by 2.0-4.0 diopters in the majority of cases. The results evidence that SKR may be used as a method of choice for the surgical correction of hypermetropic or mixed astigmatism.
作者分析了扇形角膜缝术（SKR）矫正角膜散光的首次经验。该手术包括垂直于角膜屈光不良子午线缝合一条板层内尼龙（9.00）缝线。SKR导致角膜曲率改变的机制与已知的角膜楔形切除术相似。手术技术已在12只离体尸眼实验中掌握。对8只兔子的16只眼睛进行的形态学研究使作者得出结论，单丝缝线在角膜基质中长期存在会引起相邻组织的最小变化，这些变化在随访期间不会增加。临床进行了15例手术，随访期为4至14个月。屈光主观检查数据表明，角膜散光减少了0.5至5.5屈光度，大多数病例减少了2.0 - 4.0屈光度。结果证明，SKR可作为矫正远视性或混合性散光的首选手术方法。
