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R. Hernandez, O. Baca, R. Velasco, D. Viggiano, R. Yee; Behavior of Abnormal Non-pathological Corneal Topography Post Lasik . Invest. Ophthalmol. Vis. Sci. 2003;44(13):2550.
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Purpose: To observe the topographic behavior and refractive results in patients with preoperative irregular non-pathological corneal topography who underwent refractive surgery from January 2001 to September 2002. Methods: We included patients with irregular non pathological corneal topographies who underwent LASIK, the topography selection criteria was; astigmatic bow irregularity, radial symmetry loss and absence of progressive flatness from the periphery to the center, we analyzed the refractive results and the topographies post lasik. Results: We included 170 eyes of 85 patients, 30 males (35%) and 55 females (65%) with an age average of 29.9 years old, the topographic pattern was classified as follows; superior asymmetry in 56 eyes, inferior asymmetry in 62 eyes, astigmatic bow irregularity in 20 eyes and flatness loss in 32 eyes. LASIK was done in all of the patients with central ablation, one hundred and forty two eyes (83.5%) had an inferior steepness with no posterior complications after refractive surgery Conclusion: The topographic behavior of irregular non pathological corneal topographies post-LASIK has a regular topographic change with a 91.7% of achieving 20/30 or better in visual acuity.
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