Wilczyński Michał, Bartela Joanna, Konarska Sylwia, Synder Aleksandra, Omulecki Wojciech
Z Kliniki Chorób Oczu Uniwersytetu Medycznego w Lodzi.
Klin Oczna. 2008;110(1-3):22-7.
The use of modern technologies enables constructing and producing perfected intraocular lenses. Recently, aspheric implants have become widely available.
The purpose of the study was to evaluate functional results, contrast sensitivity in scotopic conditions and spherical aberrations of the optical system of the eye after phacoemulsification with implantation of aspheric intraocular lens.
The material was gathered prospectively from January until July 2006. The examined group included patients who received aspheric intraocular lenses Adapt AO or AcrySof SN60WF and who previously had received a conventional foldable spherical lens in the fellow eye. The examined group with an intraocular lens Adapt AO consisted of 25 eyes (25 patients) and the examined group with an intraocular lens AcrySof SN60WF consisted of 12 eyes (12 patients). We examined best corrected visual acuity (BCVA) and intraocular pressure. Contrastometry in scotopic conditions and aberrometry were performed. Intraoperative and early postoperative complications were noted. For statistical analysis non-parametric U Mann-Whitney test was used, all calculations were performed for the level of significance alpha = 0.05.
In the examined groups there were no intraoperative and early postoperative complications. In both groups, there was no statistically significant difference in mean postoperative BCVA between eyes with an aspheric implant and eyes with a spherical lens. Assuming the mean contrast sensitivity in eyes with spherical implants as 100%, we observed that in eyes with an aspheric lens it was better nearly by one third. Mean value of spherical aberrations with a pupil diameter of 5mm (Zernike RMS 5 mm) in eyes with an aspheric lens was significantly lower in comparison with eyes with a spherical implant (p < 0.05). Similarly, mean value of higher order spherical aberrations with a pupil diameter of 5 mm (Higher Order Zernike RMS 5 mm), in eyes with an aspheric lens was significantly lower in comparison with eyes with a spherical implant (p < 0.05).
Using aspheric lenses Adapt AO and AcrySof SN60WF allows for achieving very good functional and anatomic results and it enables to achieve better contrast sensitivity in scotopic conditions, as well as significantly decreases spherical aberrations of the optical system of the eye, in comparison with conventional spherical lenses.
现代技术的应用使得完美的人工晶状体得以构建和生产。近年来，非球面人工晶状体已广泛应用。
本研究旨在评估白内障超声乳化联合植入非球面人工晶状体后眼的功能结果、暗视条件下的对比敏感度以及眼屈光系统的球差。
前瞻性收集2006年1月至7月的资料。研究组包括接受非球面人工晶状体Adapt AO或AcrySof SN60WF植入的患者，且其对侧眼先前已植入传统可折叠球面人工晶状体。植入Adapt AO人工晶状体的研究组有25只眼（25例患者），植入AcrySof SN60WF人工晶状体的研究组有12只眼（12例患者）。我们检查了最佳矫正视力（BCVA）和眼压。进行了暗视条件下的对比敏感度测量和像差测量。记录术中及术后早期并发症。采用非参数U曼 - 惠特尼检验进行统计分析，所有计算的显著性水平为α = 0.05。
研究组中未出现术中及术后早期并发症。两组中，植入非球面人工晶状体的眼与植入球面人工晶状体的眼术后平均BCVA无统计学显著差异。假设植入球面人工晶状体的眼的平均对比敏感度为100%，我们观察到植入非球面人工晶状体的眼的对比敏感度几乎高出三分之一。与植入球面人工晶状体的眼相比，植入非球面人工晶状体的眼在瞳孔直径为5mm时的球差平均值（泽尼克均方根5mm）显著更低（p < 0.05）。同样，与植入球面人工晶状体的眼相比，植入非球面人工晶状体的眼在瞳孔直径为5mm时的高阶球差平均值（高阶泽尼克均方根5mm）也显著更低（p < 0.05）。
与传统球面人工晶状体相比，使用非球面人工晶状体Adapt AO和AcrySof SN60WF可获得非常好的功能和解剖学结果，能在暗视条件下实现更好的对比敏感度，并显著降低眼屈光系统的球差。
