Department of Ophthalmology, Medisch Centrum Haaglanden, Lijnbaan 32, 2512 VA Den Haag, The Netherlands.
J Cataract Refract Surg. 2011 Feb;37(2):284-94. doi: 10.1016/j.jcrs.2010.08.054.
To compare higher-order aberrations (HOAs) after foldable phakic intraocular lens (pIOL) implantation and wavefront-guided photorefractive keratectomy (PRK) for the correction of myopia.
Department of Ophthalmology, Medisch Centrum Haaglanden, Den Haag, The Netherlands.
Comparative case series.
This retrospective comparative case series comprised eyes that had implantation of an Artiflex foldable pIOL or wavefront-guided PRK. Preoperative and postoperative refractive data, pupil diameter, endothelial cell density, and higher-order aberrations (HOAs) were measured and compared.
The median follow-up was 13 months in the pIOL group and 10 months in the PRK group. The mean spherical equivalent (SE) in the pIOL group was -5.50 diopters (D) ± 1.05 (SD) (range -3.25 to -7.13 D) preoperatively and -0.26 ± 0.28 D (range -0.88 to 0.38 D) postoperatively and the mean in the PRK group, -5.72 ± 0.88 D (range -4.25 to -7.50 D) and -0.03 ± 0.42 D (range -0.75 to 1.00 D), respectively. The postoperative SE was within ±0.50 D in 86.4% of eyes and 85.2% of eyes, respectively. Postoperatively, the significant changes in the pIOL group and the PRK group, respectively, were as follows: total HOAs, 0.03 μm and 0.26 μm (P = .001); trefoil-y, 0.09 μm and -0.04 μm (P = .004); spherical aberration, -0.05 μm and 0.21 μm (P = .002).
Foldable pIOL implantation increased total HOAs and spherical aberration less than wavefront-guided PRK to correct low to moderate myopia, suggesting foldable pIOL implantation maintains the cornea's prolate shape better.
比较有晶状体眼人工晶状体（pIOL）植入术后和波前引导性准分子激光角膜切削术（PRK）治疗近视的高阶像差（HOAs）。
荷兰海牙医疗中心眼科。
回顾性病例系列。
本回顾性病例系列研究包括植入 Artiflex 可折叠 pIOL 或波前引导性 PRK 的患者。比较术前和术后的屈光数据、瞳孔直径、内皮细胞密度和高阶像差（HOAs）。
pIOL 组的中位随访时间为 13 个月，PRK 组为 10 个月。pIOL 组术前平均等效球镜（SE）为-5.50 屈光度（D）±1.05（SD）（范围-3.25 至-7.13 D），术后为-0.26±0.28 D（范围-0.88 至 0.38 D），PRK 组分别为-5.72±0.88 D（范围-4.25 至-7.50 D）和-0.03±0.42 D（范围-0.75 至 1.00 D）。术后 SE 在±0.50 D 以内的分别为 86.4%和 85.2%。pIOL 组和 PRK 组术后分别出现以下显著变化：总 HOAs 增加 0.03μm 和 0.26μm（P =.001）；三叶型增加 0.09μm 和减少 0.04μm（P =.004）；球差减少-0.05μm 和增加 0.21μm（P =.002）。
与波前引导性 PRK 相比，可折叠 pIOL 植入术矫正低中度近视时，总 HOAs 和球差增加较少，提示可折叠 pIOL 植入术更好地保持了角膜的扁长形状。
