多点离焦近视防控镜片离焦效果的评估方法

由于无法统一衡量多点离焦近视防控镜片的防控效果, 提出了一种简单快捷的新型离焦有效性评价模型--等效离焦指数(EDI，Equivalent Defocus Index)。利用软件仿真模拟分析了多点离焦镜片影响视觉质量及离焦相关的参数，给出EDI的定义，并以此计算3款典型排布的等效离焦指数，与调制传递函数(MTF，Modulation Transfer Function)的值进行比较，验证了该模型的有效性。

Abstract

As there is no uniform standard to measure the dose of myopia control defocus lens, a simple and fast theory model EDI (equivalent defocus index) for evaluation of the dose is proposed. The parameters of the myopia control defocus lens which affect the visual performance are investigated by simulations in the optical software, then the definition of EDI is given. Three typical myopia control defocus lenses are evaluated by EDI and compared with modulation transfer function (MTF), which indicates the validity of EDI.

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张亮君, 张磊, 叶卓锋, 邓如芝. 多点离焦近视防控镜片离焦效果的评估方法[J]. 玻璃搪瓷与眼镜, 2023, 51(7): 1. ZHANG Liangjun, ZHANG Lei, YE Zhuofeng, DENG Ruzhi. Theory Evaluation Method of the Efficacy of Myopia Prevention and Control Defocus Lens[J]. GLASS ENAMEL & OPHTALMIC OPTICS, 2023, 51(7): 1.

多点离焦近视防控镜片离焦效果的评估方法

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