基于个性化眼模型的人眼调焦特性研究

Study on accommodation of human eyes based on individual eye model

运用光学设计软件ZEMAX分别为10只正常人眼构建了个性化眼模型,这些眼模型由实际测量的人眼参数数据优化而来,具有与实际人眼相同的光学特性。在此基础上分析了OD、—1D、—2D、—3D、—4D状态下的全眼像差与特殊像差项的变化情况。随着调节状态的改变,不同眼睛的波前像差的变化不同,而且变化量的大小与初始状态0D时的波前像差大小无关。将个性化眼模型计算得来的全眼波前像差值与用哈特曼夏克波前传感器实际测量的全眼像差值相比较,结果吻合。

The optical design software ZEMAX is used to construct the individual eye models for 10 normal eyes. The individual eye model, which is optimized from actual measurement data, has the same optical characteristics with actual eye. The variations of the total wavefront aberrations and special Zernike terms as accommodation varies (0D,—1D,—2D,—3D,—4D) are illustrated. Influence of accommodation on wavefront aberration varies from individual to individual, and the variation magnitude is independent of the magnitude of the wavefront aberration of the eye at 0D. The wavefront aberrations calculated from individual eye models are in good agreement with those measured with Hartmann-Shack wavefront sensor.