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The Change of Ocular Aberration after LASIK Surgery

2003; Korean Ophthalmological Society; Volume: 44; Issue: 2 Linguagem: Inglês

2092-9374

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

Glaucoma and retinal disorders

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