Table 1.

Area under curve (AUC) for all 37 new waveform parameters. The values with the AUC closest to 1 or 0 were selected for further calculation.

	AUC based on TKC	AUC based on KCI
p1area	0.11	0.20
p2area	0.07	0.18
h1	0.11	0.21
h2	0.15	0.25
w1	0.47	0.46
w2	0.33	0.35
aspect1	0.18	0.27
aspect2	0.33	0.40
dslope1	0.20	0.29
dslope2	0.37	0.42
uslope1	0.21	0.31
uslope2	0.31	0.38
path1	0.67	0.68
path2	0.78	0.72
slew1	0.212	0.33
slew2	0.32	0.40
mslew1	0.17	0.29
mslew2	0.28	0.37
aindex	0.25	0.30
bindex	0.4	0.47
dive1	0.16	0.26
dive2	0.21	0.29
aplhf	0.84	0.74
p1area1	0.12	0.2
p2area1	0.08	0.18
h11	0.11	0.21
h21	0.15	0.25
w11	0.41	0.340
w21	0.27	0.31
aspect11	0.23	0.32
aspect21	0.37	0.43
dslope11	0.28	0.35
dslope21	0.40	0.44
uslope11	0.22	0.33
uslope21	0.32	0.42
path11	0.64	0.66
path21	0.70	0.67

AUC: area under the curve.

TKC: Topographic Keratoconus Classification derived from Pentacam.

KCI: keratoconus classification index derived from TMS-5.