Corneal topography classification in myopic eyes based on axial, instantaneous, refractive, and profile difference maps
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Purpose: To refine and develop systems for classifying the topography of myopic comeas using axial, instantaneous, refractive, and profile difference maps. Setting: Baylor College of Medicine, Cullen Eye Institute Houston, Texas, USA. Methods: Using the EyeSys Corneal Analysis System'TM, computerized videokeratographs of 153 corneas of 78 myopic patients were retrospectively analyzed. Patterns were defined with respect to the mid-diopttic green color. Relationships among pattern types, refractive power, corneal power, corneal uniformity index (CU index), and predicted corneal visual acuity (PC acuity) were calculated.