Comparative postoperative topography pattern recognition analysis using axial vs tangential curvature maps.

摘要: PURPOSE To determine prediction accuracy of patient refractive surgery status by novice reviewers based on topography pattern analysis using axial or tangential anterior curvature maps. SETTING Four U.S. academic centers. DESIGN Prospective case-control study. METHODS Image evaluation was performed (n = 52) at 4 institutions. Participants were shown 60 total images from 30 eyes presenting for cataract with known status, including 12 imaged Placido-based and 18 Scheimpflug-based tomography. There myopic ablations, hyperopic 6 no previous performed. Each eye in both either device, reviewed as a single image time, masked to the map type (axial vs tangential). RESULTS For 52 included, identification 82.9% (517 624) 55.0% (343 maps ablation (P < .00001), 90.9% (567 58.3% (364 15.4% (48 312) 62.8% (196 .00001). significant differences between Placido Scheimpflug devices across groups year training. CONCLUSIONS Tangential yielded significantly better recognition compared after corneal ablations reviewers. Using maps, especially challenging cases, should benefit post-LASIK intraocular lens (IOL) calculator selection and, thereby, improve IOL power calculation accuracy.