基于个性化模型的人眼色差对视功能影响的研究(英文)

Study on Influence of Chromatic Aberrations on Vision Performance Based on Individual Eye Model

利用光学设计软件Zemax,对人眼色差对视功能的影响进行了研究.对构建的个性化人眼模型进行离焦、像散和高阶像差矫正的模拟.视觉效果的提高受到了色差的很大限制.在中、高空间频率处,自然光下的调制传递函数约为单色光下的50%.在自然光下,传统视觉矫正能够获得1.2的视力,个性化视觉矫正能够获得1.5的视力,还远远达不到人们所期望的超视觉.

The influence of ocular chromatic aberrations on vision performance was investigated based on individual eye model. The correction of the defocus, astigmatism and higher-order aberrations of human eye was simulated with the optical design software Zemax. Vision improvement achieved by vision correction is restricted considerably by the chromatic aberrations of human eye. At middle and higher spatial frequency, the MTF （modulation transfer function） in natural light is about 50% of that in monochromatic light. In natural light, visual acuity of 1.5 is achieved by customized vision correction theoretically, as compared with the acquired visual acuity of 1.2 by conventional correction, which is far away from the expected super-vision.