Abstract
Human eyes is an imperfect imaging system that has various aberrations such as on axis and off axis aberrations, which often affect the imaging quality of retina. However, the available aberration methods are mainly concerned with on-axis aberration measurement, which include defocusing, astigmation, and some higher order aberration measurements. Therefore, off-axis aberration measurement under the principle of Hartmann-Shack sensor is proposed in this paper with an empirical study, the results of which showed that the imaging quality of human eyes’ peripheral field decreased with the enlargement of off axis angle. The enlargement of human eyes’ off axis aberration and the decrease of photosensory cell density of the peripheral field are two reasons for such a result.
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