Kretz F T A, Attia M A S, Linz K, Auffarth G U
Augenklinik, Universitätsklinikum Heidelberg.
Augenheilkunde, International Vision Correction and Research Centre (IVCRC) & David J Apple International Laboratory for Ocular Pathology, Univiversitäts-Augenklinik Heidelberg.
Klin Monbl Augenheilkd. 2015 Aug;232(8):947-52. doi: 10.1055/s-0035-1545833. Epub 2015 Apr 30.
The aim of this study was to make an evaluation of the pseudoaccommodation span and clinical results after implantation of a diffractive, apodised and trifocal multifocal intraocular lens (MIOL).
In a prospective, single-centre study 28 eyes of 14 patients were evaluated after in the bag implantation of the Micro-F MIOL (PhysIOL, Belgium) during routine microsurgical cataract surgery. Two to four months postoperatively the final examinations were performed. Refraction, visual acuity monocular and binocular (near in 40 cm, intermediate in 80 cm and distance) as well as binocular defocus curves were evaluated.
Mean monocular UDVA (uncorrected distance visual acuity) increased significantly (p < 0.0001) from 0.471 ± 0.22 logMAR to 0.144 ± 0.14 logMAR. For the monocular UNVA (uncorrected near visual acuity) and UIVA (uncorrected intermediate visual acuity) postoperative values of 0.127 ± 0.117 and 0.158 ± 0.20 logMAR compared to binocular results of 0.057 ± 0.137 and 0.094 ± 0.181 logMAR were found. In the analysis of the binocular defocus curve two peaks could be found between 0.0 and - 0.5 D with a visual acuity of 0.0 logMAR and at - 3.0 D with a visual acuity of 0.068 logMAR. In the intermediate range a constant pseudoaccommodation of 0.2 logMAR could be found.
The trifocal, diffractive MIOL shows good functional results in all distances with a span of pseudoaccommodation of 3D and a mean visual acuity of 0.2 logMAR and better. Indeed it is offering a high level of spectacle independency without the typical intermediate gap of bifocal diffractive MIOLs.
本研究旨在评估衍射、变迹和三焦点多焦点人工晶状体（MIOL）植入后的假性调节范围和临床效果。
在一项前瞻性单中心研究中，对14例患者的28只眼在常规显微白内障手术期间行囊内植入Micro-F MIOL（比利时PhysIOL公司）后进行评估。术后2至4个月进行最终检查。评估了屈光、单眼和双眼视力（40厘米处近视力、80厘米处中视力和远视力）以及双眼散焦曲线。
平均单眼未矫正远视力（UDVA）从0.471±0.22 logMAR显著提高（p<0.0001）至0.144±0.14 logMAR。单眼未矫正近视力（UNVA）和未矫正中视力（UIVA）的术后值分别为0.127±0.117和0.158±0.20 logMAR，而双眼结果分别为0.057±0.137和0.094±0.181 logMAR。在双眼散焦曲线分析中，可在0.0至-0.5 D之间发现两个峰值，视力为0.0 logMAR，在-3.0 D处视力为0.068 logMAR。在中间范围内可发现0.2 logMAR的恒定假性调节。
三焦点衍射MIOL在所有距离上均显示出良好的功能效果，假性调节范围为3D，平均视力为0.2 logMAR及以上。实际上，它提供了高水平的无眼镜依赖，且没有双焦点衍射MIOL典型的中间视力差距。
