Vega Fidel, Valentino Maite, Rigato Franco, Millán María S
Departament d'Òptica i Optometria, Universitat Politècnica de Catalunya, BarcelonaTech, Violinista Vellsolà 37, 08222 Terrassa, Spain.
Horizons Optical S.L.U, Avenida Alcalde Barnils 72, 08174 Sant Cugat del Vallès, Spain.
Biomed Opt Express. 2021 May 12;12(6):3338-3351. doi: 10.1364/BOE.421942. eCollection 2021 Jun 1.
Two theoretical sinusoidal diffractive profile models to build up a trifocal intraocular lens (IOL) are analysed. Topographic features of the diffractive zones such as their shape, step height and radii, as well as the energy efficiency (EE) of the foci, depends on the particular model, and are compared to the ones experimentally measured in a trifocal lens that claims to be designed with a generic sinusoidal diffractive profile: the Acriva Trinova IOL (VSY Biotechnology, The Netherlands). The topography of the IOL is measured by confocal microscopy. The EE is experimentally obtained through-focus with the IOL placed in a model eye. The experimental results match very accurately with one of the theoretical models, the , once that a spatial shift in the sinusoidal profile is introduced in the model.
分析了两种用于构建三焦点人工晶状体（IOL）的理论正弦衍射轮廓模型。衍射区的地形特征，如它们的形状、台阶高度和半径，以及焦点的能量效率（EE），取决于特定模型，并与在声称采用通用正弦衍射轮廓设计的三焦点晶状体（荷兰VSY生物技术公司的Acriva Trinova IOL）中实验测量的特征进行比较。通过共聚焦显微镜测量IOL的地形。通过将IOL置于模型眼中进行聚焦实验获得EE。一旦在模型中引入正弦轮廓的空间偏移，实验结果就与其中一种理论模型非常精确地匹配。
