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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/11010


    Title: Systematic Design of Myopic Ophthalmic Lens
    Authors: RUNG-SHENG CHEN
    DER-CHIN CHEN
    BO-YEN CHEN
    SHANG-WEI HSIEH
    Contributors: Department of Photonics and Communication Engineering, Asia University, Taiwan
    Department of Electrical Engineering, Feng Chia University, Taiwan
    Keywords: human eye
    diopter
    ophthalmic lens
    optical design
    optimization
    Date: 2010-06
    Issue Date: 2010-12-15 01:36:12 (UTC+0)
    Publisher: Asia University
    Abstract: The aim of this research is to design a myopic ophthalmic lens by using ZEMAX optical design software. The myopic ophthalmic lens is designed by integrating the effects of myopic eyes. The first
    design started from adjusting the design of purely using lens making formula by ZEMAX’s simulation,named “eyeglass 1” of -0.93D myopic ophthalmic lens for -1D myopia . It then shows that the lighter power of the myopic ophthalmic lens is more suitable for the -1D myopia. This verifies that spectacle
    design should take into account the effects combined effects of the ophthalmic lens and the eye. If the lens is viewed to match the three configurations named far, middle, and near view points according to the human eye structure, an aspheric surface is introduced to the lens “named eyeglass 2”, which gives
    more freedom to correct the aberrations. At the end of this study, we show that the choice of “far distance” gives an even more suitable ophthalmic lens for myopia, and this is shown by “eyeglass 3 & 4”. The MTF values show that it is about 0.3 when spatial frequency is 83lp/mm “20/20 vision”.
    Relation: Asian Journal of Arts and Sciences 1(1):83-95
    Appears in Collections:[Asian Journal of Arts and Sciences ] v.1 n.1

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