Semmelweis University Budapest, Faculty of Medicine, Department of Ophthalmology, Hungary.
J Refract Surg. 2012 Sep;28(9):609-13. doi: 10.3928/1081597X-20120815-04.
To evaluate the long-term visual outcome and intraocular (IOL) position parameters with a single-optic accommodating IOL after 5.5- or 6.0-mm femtosecond laser capsulotomy.
This prospective, randomized, pilot study comprised 17 eyes from 11 patients (7 men) with a mean age of 65.82±10.64 years (range: 51 to 79 years). All patients received a Crystalens AT-50AO (Bausch & Lomb) accommodating IOL after femtosecond laser refractive cataract surgery using either a 5.5-mm capsulotomy (5.5-mm group; 9 eyes) or 6.0-mm capsulotomy (6.0-mm group; 8 eyes). Near and distance visual acuities, manifest refraction spherical equivalent (MRSE), and IOL tilt and decentration were evaluated 1 year postoperatively.
No significant differences were noted between groups for postoperative uncorrected distance visual acuity, uncorrected near visual acuity, distance-corrected near visual acuity, and MRSE. Vertical and horizontal tilt were significantly higher in the 6.0-mm group than in the 5.5-mm group (P=.014 and P=.015, respectively). No significant difference was observed between groups regarding IOL decentration.
A 5.5-mm capsulotomy created with a femtosecond laser is associated with less IOL tilt and therefore may be superior to a 6.0-mm capsulotomy when implanting a single-optic accommodating IOL.
评估经 5.5 或 6.0mm 飞秒激光囊切开术后单光调节型人工晶状体的长期视觉效果和眼内（IOL）位置参数。
本前瞻性、随机、试点研究纳入了 11 名患者（7 名男性）的 17 只眼，平均年龄为 65.82±10.64 岁（51-79 岁）。所有患者均在飞秒激光屈光性白内障手术后行 Crystalens AT-50AO（Bausch & Lomb）调节型人工晶状体植入术，其中 9 只眼接受 5.5mm 囊切开术（5.5mm 组），8 只眼接受 6.0mm 囊切开术（6.0mm 组）。术后 1 年评估近距和远距视力、主观折射等效球镜（MRSE）和 IOL 倾斜及偏心度。
两组术后未矫正远视力、未矫正近视力、远距矫正近视力和 MRSE 无显著差异。6.0mm 组的垂直和水平倾斜明显高于 5.5mm 组（P=.014 和 P=.015）。两组间 IOL 偏心度无显著差异。
飞秒激光制作的 5.5mm 囊切开术与较小的 IOL 倾斜有关，因此在植入单光调节型人工晶状体时，可能优于 6.0mm 囊切开术。
