| ORK与LASIK术后角膜地形图变化的对比研究 |
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imized refractive keratectomycustomized ablation therapy ,and for the same period 50 patients 100 eyes with high myopia were treated with conventional LASIK, the effect of two groups was observed,and the corneal topography changes,including corneal curvature, K1, K2, surface asymmetry index (SAI), surface regularity index (SRI) of the two groups after 6 months were observed with corneal topography. RESULTS:Compared with that of preoperative, postoperative corneal curvature, K1,K2, decreased, SAI, SRI reduced (each P <0.05). The improvement of was SAI and SRI in ORK group after 6 months superior to that in the LASIK group (each P<0.05). CONCLUSION: The cornea of the patients who underwent optimized refractive keratectomycustomized ablation therapy is more of regularity and symmetry than that of conventional LASIK patients after 6 months.
KEYWORDS: optimized refractive keratectomy; laser in situ keratomileusis; surface asymmetry index; surface regularity index
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