Vector analysis of 1-year astigmatic outcomes from a prospective, randomized, fellow eye comparison of wavefront-guided and wavefront-optimized LASIK in myopes.

摘要: PURPOSE To compare the astigmatic outcomes of LASIK with a single excimer laser platform using either wavefront-guided (WFG) or wavefront-optimized (WFO) modes. METHODS Sixty-eight eyes 34 patients underwent for myopia Wavelight Allegretto Eye-Q 400-Hz (Alcon Laboratories, Inc., Huenberg, Switzerland). One eye WFG-LASIK and contralateral WFO-LASIK. Alpins vector analysis astigmatism was performed manifest refraction measured preoperatively 12 months postoperatively vertexed to corneal plane. Eyes were stratified subgroup based on preoperative astigmatism. RESULTS WFO-LASIK similar regard surgically induced astigmatism, difference vector, magnitude error, correction index, flattening index success. The angle error 80% less in WFG group compared WFO (1.92° ± 0.67o vs 9.66° 3.7o, P = .04). CONCLUSIONS Alcon WaveLight produce results myopic patients; however, mode may slightly more predictable corrections.