眼科 ›› 2014, Vol. 23 ›› Issue (3): 161-164.doi: 10.13281/j.cnki.issn.1004-4469.2014.03.005

• 论著 • 上一篇    下一篇

全激光T-PRK手术对近视眼角膜后表面形态影响的临床观察

苏燕  侯杰  郑秀云  雷玉琳   

  1. 250200山东,济南市明水眼科医院
  • 收稿日期:2014-03-24 出版日期:2014-05-25 发布日期:2014-05-27
  • 通讯作者: 侯杰,Email: houjie716@sina.com E-mail:houjie716@sina.com
  • 基金资助:

Clinical observation of changes in posterior corneal surface after transepithelial photorefractive keratectomy

SU Yan, HOU Jie, ZHENG Xiu-yun, LEI Yu-lin   

  1. Jinan Mingshui Eye Hospital, Jinan 250200, Shandong province, China
  • Received:2014-03-24 Online:2014-05-25 Published:2014-05-27
  • Contact: HOU Jie, Email: houjie716@sina.com E-mail:houjie716@sina.com

摘要: 目的  探讨全激光经角膜上皮的激光角膜切削术(T-PRK)矫治近视眼后角膜后表面形态的变化,并与准分子激光角膜上皮瓣下磨镶术(Epi-LASIK)进行比较。设计 前瞻性比较性病例系列。研究对象 济南明水眼科医院2013年7月至2014年1月行表层准分子激光手术的近视及近视散光患者68例(134眼),其中T-PRK组46例(81眼),Epi-LASIK 22例(53眼)。方法 使用Pentacam眼前节分析系统分别于术前及术后1周、1、3和6个月测量角膜后表面高度及非球面参数Q值。主要指标 角膜后表面高度及非球面参数Q值。结果 两组术后角膜后表面高度均较术前发生轻度的位置后移,T-PRK组在术后1、3及6个月时,Epi-LASIK组在术后6个月时,较术前差异有统计学意义(P均<0.05)。两组角膜后表面Q值较术前差异均无明显变化(P均>0.05)。两组之间比较,无论是角膜后表面高度还是Q值的差异均无统计学意义(P均>0.05)。结论 全激光T-PRK矫正近视术后角膜后表面高度有轻度位置后移的现象,但并未影响后表面整体的非球面形态。

关键词: 近视, 角膜屈光手术, 角膜后表面, Q值

Abstract: Objective To observe the changes of posterior corneal surface after transepithelial photorefractive keratectomy (T-PRK) and epipolis laser in situ keratomileusis (Epi-LASIK) for myopia. Design Prospective comparetive case series. Participants 134 eyes of 68 miopia patients were divided into T-PRK group (81 eyes) and Epi-LASIK group (53 eyes). Methods Posterior corneal elevation and Q-value were analyzed using pentacam before and 1 week, 1, 3 and 6 months after operation,respectively. Main Outcome Measures Posterior coneal elevation and Q-value. Results In the T-PRK group, at 1st and 6th month after surgery and in the Epi-LASIK group at 6th month after surgery, the posterior corneal elevation have a statistically significant backward displacement(all P<0.05). No statistically significant difference was found in the postoperative corneal Q-value in both groups before and after surgery(all P>0.05). There was also no statistically significant difference of postoperative corneal surface elevation and Q-value between the two groups (all P>0.05). Conclusion The posterior corneal elevation showing a backward displacement after T-PRK for myopia,while posterior corneal asphericity has no changed.

Key words: myopia, corneal refractive surgery, posterior corneal surface, Q-value