【摘要】 对未加散光切口的放射状角膜切开术１２４例（２４５只眼）患者，进行术后６～８个月观察。结果表明，７４只眼（３０．２％）散光增加，增加范围＋０．５０～＋３．５０ＤＣ；２７只眼（１１．０％）散光减少；１４４只眼（５８．８％）散光不变。散光变化的主要原因为术中发生的微穿孔、切口不均、切口入视光学中心区、切口深度不等。更多还原

【Abstract】 Radial keratotomy without T-cutting was performed on 245 eyes of 124 patients with 6-8 months of post-operative follow-up.The results showed that post-operatively astigmatism was in-creased in 74 eyes(30.2%)with the increased range from+0.50 to+3.50DC,decreased in 27 eyes(11.0%)and not changed in 144 eyes(58.8%).The main causes of astigmatic change included mi-croperforations,irregular incisions,incisions across the central optical zone and various depths of inci-sions,etc.更多还原