Hasimoto Alexander Rodrigo, Gomes Manuela Fiorese Benites, de Siqueira Marcelo Alves Vilar, Moreira Hamilton
Arq Bras Oftalmol. 2013 Nov-Dec;76(6):335-8. doi: 10.1590/s0004-27492013000600002.
To assess LASIK flaps made by femtosecond laser and mechanical microkeratome.
Clinical, prospective, randomized, masked study of 32 eyes (16 patients). Both eyes of all patients were operated, each patient underwent different techniques for lasik. Microkeratome Hansatome (TM) Bausch & Lomb (group microkeratome) was used in one eye and femtosecond laser Femto LDV(TM) Ziemer (group femtosecond) was used for the fellow eye. Patients were selected from the Refractive Surgery service of the Eye Hospital of Paraná between July 2010 and September 2010. Inclusion criteria were myopia less than 6.00 D, astigmatism less than 3.00 D, hyperopia less than 5.00 D, stable refraction over one year, corneal diameter smaller than 11 mm, discontinuation of contact lenses seven days before the preoperative evaluation, corrected visual acuity of at least 20/20. Eyes were randomly allocated for each technique. The studied variables were: visual acuity with and without correction, residual refractive error, high order aberrations, low contrast visual acuity, complications and subjective patient preference.
All studied variables were similar between the two groups.
We could not demonstrate any difference between the studied groups.
评估飞秒激光和机械微型角膜刀制作的准分子原位角膜磨镶术（LASIK）角膜瓣。
对32只眼（16例患者）进行临床、前瞻性、随机、双盲研究。所有患者的双眼均接受手术，每位患者的一只眼采用不同的LASIK技术。一只眼使用博士伦公司的Hansatome（TM）微型角膜刀（微型角膜刀组），另一只眼使用齐默公司的Femto LDV（TM）飞秒激光（飞秒激光组）。患者选自2010年7月至2010年9月巴拉那眼科医院屈光手术科。纳入标准为近视度数小于6.00 D、散光度数小于3.00 D、远视度数小于5.00 D、屈光稳定超过一年、角膜直径小于11 mm、术前评估前7天停止佩戴隐形眼镜、矫正视力至少为20/20。将眼睛随机分配至每种技术组。研究的变量包括：矫正和未矫正视力、残余屈光不正、高阶像差、低对比度视力、并发症以及患者主观偏好。
两组之间所有研究变量均相似。
我们未能证明研究组之间存在任何差异。
