摘要
目的评价Ziemer’s Femto LDV飞秒激光制瓣联合准分子激光角膜原位磨镶术(LASIK)治疗不同屈光度近视的临床疗效。方法将行Femto LDV制瓣的LASIK近视患者203例共401眼按术前屈光度分成3组,A组:-0.5^-6.0 D,284眼;B组:-6.25^-10.0 D,107眼;C组:-10.25^-14 D,10眼。观察术后12个月内其裸眼视力、矫正视力、屈光度及术后并发症的发生。结果虽然3组术后3个月的裸眼视力达0.5以上者均为100%,但1.0以上者分别为100.0%、99.1%及70.0%,其中C组患者显著低于A、B组(P<0.05)。而且C组患者术后12个月裸眼视力逐渐出现低于术前的最佳矫正视力的发生率明显高于A、B组(P<0.05),但3组的术后最佳矫正视力均无明显下降(P>0.05)。术后12个月各组平均屈光度A组为(-0.19±0.43)D,B组(-0.37±0.63)D,C组(-1.02±1.16)D,其中≤±0.5 D的分别为98.9%、83.2%和40.0%(C组明显低于A、B组,P<0.05)。所有患者基质床切削区均匀,偏离中心率低,角膜后表面高度差异无统计学意义,泪膜破裂时间、眼压差异均无统计学意义(P<0.05),未见严重并发症发生。结论使用Femto LDV制瓣的LASIK对于不同近视度数的患者均有好的治疗效果,术后视力好,预测性高,效果稳定及安全性高等,但对于超高度近视患者术后12个月视力预测性明显低于其他近视患者。
[Objective] To evaluate the laser in situ keratomileusis assisted femto-second in the treatment of low, high and excessively myopic eyes. [Methods] 401 eyes were treat with LASIK assisted femto-second laser （Ziemers Femto LDV） and divided into three groups. Group A： -0.5 --6.0 D, 284 eyes; group B： -6.25 D--10.0 D, 107 eyes; group C： -10.25 D--14 D, 10 eyes. Visual acuity, refraction, corneal eccentricity, the posterior corneal elevation, intraocular pressure and postoperative complications were observed. [Results] At 3 months postoperatively, the percentages of UCVA≥0.5 were 100% in three groups, BCVA -1.0 were 100%, 99.1%, 70% respectively. The mean diopter was -0.19 ± 0.43 D （group A）, -0.37±＋ 0.63 D （group B）, - 1.02 ± 1.16D （group C）, and the percentages -〈±0.5 D were 98.9%, 83.2%, 40.0% respectively. The ablation zone and off-center zone are uniform. The posterior corneal elevation, intraocular pressure were no significant differentiation （P〈0.05）. No serious complications occurred postoperatively. [Conclusions] LASIK assisted with Femto-second laser （Ziemer＇s Femto LDV） for myopia makes good effect, which can achieve good visual qual- ity, high predictability, long stability and high security. However, the visual predictability is the worst in the extremely-high myopia group during the 12 months observation postoperatively.
出处
《中国现代医学杂志》
CAS
CSCD
北大核心
2014年第20期68-72,共5页
China Journal of Modern Medicine
关键词
飞秒激光
准分子激光原位角膜磨镶术
近视
屈光度
视力
femto-second laser
excimer laser in situ keratomi｜eusis
myopia
diopter
visual acurity
