Buratto L, Ferrari M
Centro Ambrosiano di Microchiruigia Oculare, Milan, Italy.
Refract Corneal Surg. 1993 Mar-Apr;9(2 Suppl):S34-6.
Surgical correction of mild and high myopia using excimer laser photorefractive keratectomy (PRK) remains controversial. We present a retrospective study of 40 consecutive PRK procedures performed to reduce myopia ranging from -6.00 D to -10.00 D. Postoperative follow up was 24 months. The mean preoperative spheroequivalent refraction was -8.12 +/- 1.52 D; postoperatively it was -2.31 +/- 1.25 D. In 26 of 40 eyes (65%) we observed a regression of the refraction effect after 6 months. In 85% of eyes a persistent corneal haze (+1 grading) was observed at the end of follow up. Photorefractive keratectomy to correct or reduce mild or high myopia is simple and safe but had poor predictability and significant refractive regression in this series.
使用准分子激光屈光性角膜切削术（PRK）对轻度和高度近视进行手术矫正仍存在争议。我们对连续40例进行PRK手术以降低-6.00 D至-10.00 D近视的病例进行了回顾性研究。术后随访24个月。术前平均等效球镜度为-8.12±1.52 D；术后为-2.31±1.25 D。40只眼中的26只眼（65%）在6个月后出现了屈光效果的回退。随访结束时，85%的眼睛出现了持续性角膜 haze（+1级）。在本系列中，准分子激光屈光性角膜切削术矫正或降低轻度或高度近视简单安全，但可预测性差且屈光回退明显。
