Fig. 1: The AUROC of different tomographic indices in the studied population.

TP x thinnest point displacement in the x-axis, K Max Front x steepest point of the front surface keratometry displacement in the x-axis, ACA maximum anterior chamber angle in the horizontal meridian, ACV anterior chamber volume at 10-mm diameter, keratometric astigmatism (absolute value), TP y thinnest point displacement in the y-axis, ACD internal anterior chamber depth, K mean curvature power of the cornea within the central 3-mm circle expressed in diopters, K Max y Front steepest point of the front surface keratometry displacement in the y axis, Irregularity high-order irregularity by Fourier analysis (other than spherical power and asphericity, tilt, and astigmatism), IHA index of height asymmetry, K2 keratometric power of the steep meridian, K1 keratometric power of the flat meridian, TNP Apex true net power at the corneal apex, Tilt tilt by Fourier analysis, Pachy pupil corneal thickness at the point corresponding to the pupil centre, Pachy apex corneal thickness at the apex, Ecc Sph mean eccentricity in the central 30 degrees by Fourier analysis, ISV index of surface variance, TP corneal thickness at the thinnest point, K max front keratometry of the steepest point of the front surface, FE BFS front elevation from the best-fit sphere, PPI min minimum pachymetric progression index, FE BFTE front elevation from the best-fit toric ellipsoid, IVA index of vertical asymmetry, CKI central keratoconus index, BE back elevation from the best-fit sphere, IHD index of height decentration, TKC topographic keratoconus indices, BE BFTE back elevation from the best-fit toric ellipsoid, KI keratoconus index, PPI avg average pachymetric progression index, ART avg Ambrosio’s relational thickness average, PPI Max maximum pachymetric progression Index, ART max Ambrosio’s relational thickness maximum, CAIRO 8 corneal assessment index from the relational thickness and other OCULUS values analysed for an 8-mm zone.