Alió Jorge L, Piñero David P, Espinosa María José Ayala, Corral María José García
Vissum-Instituto Oftalmológico de Alicante, Universidad Miguel Hernández, Alicante, Spain.
J Cataract Refract Surg. 2008 Mar;34(3):398-406. doi: 10.1016/j.jcrs.2007.09.045.
To evaluate the changes in visual performance and ocular optical quality after hyperopic laser in situ keratomileusis (LASIK) using the Esiris excimer laser (Schwind eye-tech-solutions).
Vissum-Instituto Oftalmológico de Alicante, Alicante, Spain.
Excimer laser surgery was performed with the Esiris laser in 51 eyes of 29 patients with hyperopia or hyperopic astigmatism. The follow-up was 6 months. Changes in visual acuity, refraction, and corneal and ocular wavefront aberrations (6.0 mm pupil) were recorded and analyzed.
The mean preoperative sphere was +4.45 diopters (D)+/-1.08 (SD) (range +2.50 to +7.25 D) and the mean preoperative cylinder, -0.55+/-0.36 D (range 0.00 to 1.00 D). Ten eyes (19.61%) had a LASIK enhancement during the follow-up for the correction of the residual refractive error and were excluded from the refractive analysis. Of the 41 remaining eyes, 95.12% had the same or improved distance best spectacle-corrected visual acuity (BSCVA) 6 months after surgery; 90.25% had no change or a gain of lines of near BSCVA. Moreover, 80.50% of eyes were within +/-0.50 D of emmetropia. Regarding corneal aberrations, statistically significant changes were observed in higher-order aberrations (HOAs), coma-like aberrations, and the primary spherical aberration coefficient Z(4,0), which changed from positive to negative values (all P<.01). Regarding total ocular aberrations, statistically significant changes were observed in total and higher-order root-mean-square values (P<.01).
Hyperopic LASIK using the Esiris excimer laser for the correction of 2nd-order aberrations was safe and effective. Ocular and corneal HOAs increased significantly postoperatively.
使用艾西丽准分子激光（施温德眼科技术解决方案公司）评估远视性准分子原位角膜磨镶术（LASIK）后视觉性能和眼屈光质量的变化。
西班牙阿利坎特市阿利坎特眼科研究所Vissum。
使用艾西丽激光对29例远视或远视散光患者的51只眼进行准分子激光手术。随访6个月。记录并分析视力、屈光、角膜和眼波前像差（6.0毫米瞳孔）的变化。
术前平均球镜度数为+4.45屈光度（D）±1.08（标准差）（范围为+2.50至+7.25 D），术前平均柱镜度数为-0.55±0.36 D（范围为0.00至1.00 D）。10只眼（19.61%）在随访期间因矫正残余屈光不正而进行了LASIK增效手术，并被排除在屈光分析之外。在其余41只眼中，95.12%的患者术后6个月的远距离最佳矫正视力（BSCVA）相同或提高；90.25%患者的近距离BSCVA无变化或提高了行数。此外，80.50%的眼屈光状态在正视眼的±0.50 D范围内。关于角膜像差，高阶像差（HOAs）、类彗差和初级球差系数Z(4,0)有统计学意义的变化（均从正值变为负值，P<0.01）。关于总眼像差，总均方根值和高阶均方根值有统计学意义的变化（P<0.01）。
使用艾西丽准分子激光进行远视性LASIK以矫正二阶像差是安全有效的。术后眼和角膜HOAs显著增加。
