Hecht S D, Jamara R J
Ann Ophthalmol. 1982 Apr;14(4):319-30.
Eighteen eyes were preoperatively evaluated and operated on by the method of Fyodorov. Although Fyodorov stated that his formula improves the predictability of radial keratotomy, we know of no previously published studies that included it. They all omitted the Maklakov measurement of scleral rigidity, although Fyodorov stated that it may influence the surgical result profoundly. Maklakov measurement of scleral rigidity does not correlate with Schiotz measurement of scleral rigidity. The overall predictability of the formula at six to 14 months postoperatively was good except in the eyes of a diabetic patient. The formula enables the surgeon to show the patient preoperatively what his likely result will be. Sixteen of 17 eyes (94%) in the refraction range of -2.00 to -7.50 had a visual acuity of 20/50 or better. The patient satisfaction rate was excellent. There were no important complications. Subjective glare and glare independently measured with the Miller-Nadler glare tester was absent in all tested eyes except one eye when it was dilated. Radial keratotomy as described here is safe, effective, and reasonably predictable and may be offered to selected patients who have personal requirements that are not fulfilled by standard optical devices.
18只眼睛在术前接受了评估，并采用费奥多罗夫方法进行了手术。尽管费奥多罗夫称他的公式提高了放射状角膜切开术的可预测性，但我们所知此前没有已发表的研究包含该公式。所有这些研究都遗漏了马克拉科夫巩膜硬度测量，尽管费奥多罗夫称它可能会对手术结果产生深远影响。马克拉科夫巩膜硬度测量与希厄茨巩膜硬度测量不相关。该公式在术后6至14个月的总体可预测性良好，但糖尿病患者的眼睛除外。该公式能让外科医生在术前向患者展示其可能的手术结果。在-2.00至-7.50屈光度范围内的17只眼睛中有16只（94%）视力达到20/50或更好。患者满意度很高。没有严重并发症。除一只眼睛散瞳时外，所有接受测试的眼睛用米勒-纳德勒眩光测试仪独立测量时均无主观眩光和眩光。本文所述的放射状角膜切开术安全、有效且具有合理的可预测性，可提供给那些个人需求无法通过标准光学装置满足的特定患者。
