Saragoussi J J
Ophthalmology Department, Hotel-Dieu Hospital, Paris, France.
Fortschr Ophthalmol. 1990;87 Suppl:S215-8.
Radial keratotomy is effective for correcting low-grade myopia. The predictability is best for myopia that is less than 4 diopters. If the procedure is well performed, the rate of complications remains low. There is not always good correlation between refraction and keratometric changes because of correction errors, which are the main complication. Glare and fluctuating vision are common in the weeks following surgery. Wound healing may be delayed. Histological studies have shown that the epithelial plug is sometimes not eliminated after 4 years, which explains the long-term changes in refraction and corneal fragility after trauma. Incision ruptures can occur many years after surgery. The long-term evolution after 10 years is not known, and the indications are still controversial because it is a surgical procedure that modifies the visual function of a healthy eye.
放射状角膜切开术对于矫正低度近视有效。对于低于4屈光度的近视，其可预测性最佳。如果手术操作得当，并发症发生率仍然较低。由于作为主要并发症的矫正误差，屈光与角膜曲率计测量变化之间并不总是存在良好的相关性。眩光和视力波动在术后几周很常见。伤口愈合可能会延迟。组织学研究表明，上皮栓有时在4年后仍未消除，这解释了创伤后屈光和角膜脆性的长期变化。手术多年后可能会发生切口破裂。10年后的长期演变情况尚不清楚，并且由于这是一种改变健康眼睛视觉功能的外科手术，其适应症仍存在争议。
