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KMID : 1011420090140020035
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Journal of Korean Ophthalmic Optics Society
2009 Volume.14 No. 2 p.35 ~ p.39
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Determination of Corneal Aberrations Using Corneal Shape of Topographer
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Park Seong-Jong
Kim Sun-Young
Han Kyung-Soo
Joo Seok-Hee
Chun Young-Yun
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Abstract
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Purpose: In this study a program was developed to determine corneal aberrations using corneal shape of topographer and represented a wavefront and corneal aberrations using zernike polynomial.
Methods: When the pupil size was 6 mm, we calculated new corneal shape data with zernike polynomials using corneal shape data of ORBSCAN topographer. We programmed the wavefront construction using ray tracing for corneal shape, then represented corneal aberrations having zernike polynomial with 6th order and 28 terms.
Conclusions: We developed programs to determine a wavefront and corneal aberrations using corneal shape of ORBSCAN topographer. Theses results will be applied to a development of new topographer and prescription of contact lens and OK lens.
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KEYWORD
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Corneal Aberration, Corneal Shape, Corneal Height, Zernike Polynomial, Ray Tracing
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