The Change of Ocular Aberration after LASIK Surgery.

Oh, Jae Ryong; Kim, Jae Suk; Lee, Do Hyung

Original Article

Journal of the Korean Ophthalmological Society 2003;44(2):278-283.
Published online February 1, 2003.

The Change of Ocular Aberration after LASIK Surgery.

¹Department of Ophthalmology, Inje university, Ilsan Paik hospita, Korea. dhlee@ilsanpaik.ac.kr
²Department of Ophthalmology, Inje university, Sanggye Paik hospital, Korea.

라식 수술 후 안구 수차의 변화

오재룡 ( Jae Ryong Oh ) , 김재석 ( Jae Suk Kim ) , 이도형 ( Do Hyung Lee )

Abstract

PURPOSE
To evaluate the change of ocular aberration after LASIK using Zernike's polynomial expansions. METHODS: Sixty eyes of thirty consecutive patients that underwent LASIK were examined prospectively. The ocular aberration was measured with Hartman-Shack aberrometer (WASCA Wavefront Analyzer, USA) at postoperative 30, 90, and 180 days. The postoperative values were compared with that of preoperation. RESULTS: The average age is 27.6 years old. The range of preoperative refractory error were from -3.00 Diopter (D) to -11.00 D. The increase of spherical and triangular coma aberrations (4.7- fold and 3.5- fold, respectively), with respect to preoperative values. There were statistically significant differences between preoperative and postoperative high order RMS at the postoperative 180 days (p<0.05). CONCLUSIONS: The postoperative increases of RMS in higher order aberration, coma aberration, triangular aberration was observed.

Key Words: LASIK;Ocular aberration;Visual quality;Zernike's polynomial expansions