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New interferometric method to assess intraocular lens (IOL) characteristics

机译：评估眼内晶状体（IOL）特性的新型干涉法

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Abstract: To assess the images formed by a lens, we have to know first its focal length and its transfer function, characteristic of the quality of the theoretical focused image. At this time, aberrant lenses cannot be perfectly characterized. Several optical benches have been built in order to measure focal length and MTF of these lenses, but repeatability was very poor. Corneal and Supelec then conceived of a new method based mainly on calculations instead of mechanical device adjustments. A preliminary study proved the feasibility of a new method, which we call the 'speckle' method. Several tests have shown that power and imaging quality were included into the two-dimensional signal measured by a CCD. Mathematical theory was then conceived to assess power and imaging quality with good repeatability. We will present here the theoretical basis of the speckle method, then present the practical bench. Results will be given after a second applied research program, which will be completed by the end of 1994. !6
机译：摘要：要评估由透镜形成的图像，我们首先必须知道其焦距和其传递函数，以及理论聚焦图像的质量特征。此时，无法完美表征异常透镜。为了测量这些镜头的焦距和MTF，已经建立了几个光学平台，但是可重复性非常差。然后，角膜和Supelec设想了一种主要基于计算而不是机械设​​备调整的新方法。初步研究证明了一种新方法的可行性，我们称之为“散斑”方法。多项测试表明，功率和成像质量已包含在CCD测量的二维信号中。然后构想出数学理论，以具有良好的可重复性评估功率和成像质量。我们将在这里介绍散斑方法的理论基础，然后介绍实用的基准。将在第二次应用研究计划之后得出结果，该研究计划将于1994年底完成。！6

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