Abstract
Objective To compare the high-order aberration after both side laser in situ keratomileusis (BSL) and laser in situ keratomileusis (Lasik) operation in treating high myopia. Methods BSL and Lasik were both.performed in 61 (122 eyes) patients with high myopia.Among which 30 patients (60 eyes) were randomly selected as BSL group,and 31 patients (62 eyes) were selected as Lasik group.The wavefront aberration were measured in darkroom with normal pupil at preoperatively,1 week,1 month and 3 months postoperatively by OPD-SCAN object aberration apparatus produced in NIDEK company. Results The root mean square (RMS) value of high-order aberration,C7,C8 and C12 in BSL group and Lasik group were not statistically significant at preoperatively (P ＞0.05).The RMS value of C7,C8 and C12 in BSL group and Lasik group were statistically increased at 1 week,1 month and 3 months postoperatively (P ＜0.01).The RMS value of C7,C8 and C12 in BSL group and Lasik group were not significantly different at 1 week,1 month and 3 months postoperatively (P ＞0.05).Conclusions The increase of the high-order aberration after BSL and Lasik operation in treating high myopia is similar. Key words: Both side laser in situ keratomileusis; High myopia; High-order aberration
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