Tommasi Federico, Giorgetti Alessio, Monnetti Caterina, Fini Lorenzo, Romualdi Giovanni, Mencucci Rita, Gurioli Massimo, Cavalieri Stefano
Department of Physics and Astronomy, University of Florence, via Giovanni Sansone 1, Fiorentino 50019 Sesto, Italy.
Department of Physics and Astronomy, University of Florence, via Giovanni Sansone 1, Fiorentino 50019 Sesto, Italy.
J Optom. 2025 Apr-Jun;18(2):100546. doi: 10.1016/j.optom.2025.100546. Epub 2025 Mar 29.
This study presents a detailed optical characterization of three intraocular lenses (IOLs) comparing two so called "enhanced range of field", Evolux IOL and Tecnis Eyhance IOL and one so called "narrow range of field", a standard monofocal IOL Acrysof IQ.
The measurements are performed using the PMTF optical bench, basing on the Modulation Transfer Function (MTF) to evaluate the optical performance of each lens. The MTFa, representing the area under the MTF curve, is utilized as a key and synthetic metric to quantify performance across different spatial frequencies, providing insights into the IOLs' behavior as defocus varies.
The results highlight the strengths and the weaknesses of the IOLs, with the Evolux showing a broadest depth of focus. The USAF resolution target is used to qualitatively assess the image reproduction at far, intermediate, and near distances, offering a visual representation of the IOLs' capabilities.
These findings provide valuable information for selecting IOLs based on patient-specific visual requirements in cataract and refractive surgery.
本研究对三种人工晶状体（IOL）进行了详细的光学特性分析，比较了两种所谓的“扩大景深”人工晶状体，即Evolux人工晶状体和Tecnis Eyhance人工晶状体，以及一种所谓的“窄景深”人工晶状体，即标准单焦点Acrysof IQ人工晶状体。
使用PMTF光学平台进行测量，基于调制传递函数（MTF）来评估每个晶状体的光学性能。MTFa代表MTF曲线下的面积，被用作一个关键的综合指标来量化不同空间频率下的性能，从而深入了解人工晶状体在散焦变化时的表现。
结果突出了人工晶状体的优点和缺点，其中Evolux人工晶状体的景深最宽。使用美国空军分辨率靶标对远、中、近距离的图像再现进行定性评估，直观展示了人工晶状体的性能。
这些发现为白内障和屈光手术中根据患者特定的视觉需求选择人工晶状体提供了有价值的信息。
