Assessment of Axial Length Before and After Myopic LASIK With the IOLMaster

作者：Tay Eugene^*; Li Xiang; Gimbel Howard V; Kaye Geoffrey

来源：Journal of Refractive Surgery, 2013, 29(12): 838-841.

DOI：10.3928/1081597X-20130924-01

PURPOSE: To assess the relationship between theoretical ablation depth and axial length change after LASIK with the IOLMaster (Carl Zeiss Meditec, Dublin, CA).
METHODS: Ninety-nine eyes were examined preoperatively and 1 and 3 months after LASIK.
RESULTS: Mean +/- standard deviation (SD) spherical equivalent before LASIK was -4.06 +/- 1.91 diopters (D). Mean +/- SD ablation depth was 83.13 +/- 30.31 mu m. Mean +/- SD postoperative axial length of 25.11 +/- 0.14 mm at 1 month was significantly shorter than mean +/- SD preoperative axial length of 25.20 +/- 0.14 mm (P < .001) with no subsequent change thereafter (P = .450). An increase in ablation depth of 1 mu m led to a decrease in axial length of 0.00118 +/- 0.00005 mm. Ablation depth correlated strongly with change in axial length (adjusted R-2 = 0.9039).
CONCLUSIONS: The IOLMaster showed a decrease in axial length after LASIK that correlated well with theoretical ablation depth.

• 出版日期2013-12