| An investigation on dysphotopsia of a sigma-edged intraocular lens |
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| 作者姓名： | 高志山 孔梅梅 李新华 陈磊 朱日宏 |
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| 作者单位： | School of Optical Engineering Nanjing University of Science and Technology，Nanjing 210094，School of Optical Engineering，Nanjing University of Science and Technology，Nanjing 210094，School of Optical Engineering，Nanjing University of Science and Technology，Nanjing 210094，School of Optical Engineering，Nanjing University of Science and Technology，Nanjing 210094，School of Optical Engineering，Nanjing University of Science and Technology，Nanjing 210094 |
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| 摘 要： | A sigma-edged design of intraocular lens (IOL) is proposed to minimize the reflected glare images associated with the edge. The optimal sigma inverse edge is investigated when pupil diameter is 5.0 mm by the established Escudero-Sanz's wide angle model. The non-sequential ray tracing program of Zemax-EE (Zemax Development Corp., San Diego, USA) is used to investigate the sigma edge of reducing the potential for edge glare phenomena. The results show that sigma-edged design can significantly reduce the reflected glare intensity on retina if the angle of its inverse edge is taken from 20 to 70 degrees.
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