Table 2

Keratometric profiles of all 28 patients

No	simK	Axis	Fourier series harmonic analysis					Zernike coefficients	Eccentricity
			Spherical power	Reg ast 3 mm	Reg ast 6 mm	Asymmetry	Higher order irregularity	HOA RMS error	Eccentricity
			Normal range (D)⁵⁰					Normal range (μm)⁵⁶	Normal range^58,⁵⁹
			40.81–47.13	0–1.04	0–1.04	0.02–0.68	0.05–0.17	0.234–0.857	0.5–0.7
All values out of the normal range are in italics.
All means of the Fourier series harmonic analysis and of the HOA RMS are out of the normal range.
The irregular astigmatism within the Fourier series harmonic analysis (asymmetry and higher order irregularity) is out of the normal range in all patients.
Reg ast 3 mm, central regular astigmatism; Reg ast 6 mm, peripher regular astigmatism.
HOA RMS error, root mean square error of the higher order aberrations (third to sixth order).
Tricurve design
1	−6.8	43.1°	46.86	2.31	1.42	4.40	0.45	0.80	0.35
2	−4.1	25.9°	62.69	1.37	1.97	3.16	0.30	3.47	0.1
3	−3.8	143.1°	44.33	1.97	1.22	6.91	0.25	0.57	0.25
4	−7.4	140.9°	54.11	1.92	1.77	3.79	0.38	0.84	0.29
5	−8.7	11.1°	48.14	3.92	1.97	5.62	0.66	0.97	0.39
6	−1.9	159.5°	42.75	1.77	0.34	2.50	0.31	0.28	0.01
7	−5.5	9.3°	52.09	2.26	1.77	6.53	0.24	1.33	−0.77
8	−5.3	160.3°	47.86	2.55	1.27	0.97	0.37	0.41	−0.73
9	−4.8	158.1°	45.04	2.16	1.27	4.27	0.29	0.48	0.0
10	−3.6	169.3°	49.34	1.42	0.92	2.69	0.50	0.48	−0.9
11	−8.8	11.3°	45.78	3.48	2.50	0.81	0.37	5.38	0.28
Keratoconus design
12	−1.8	141.6°	55.17	1.32	1.77	2.36	0.51	0.65	0.89
13	−7.2	39°	54.28	0.55	0.66	3.43	0.23	0.41	0.75
14	−2.9	1.7°	46.73	0.24	1.37	1.72	0.48	0.35	0.82
Reverse design
Tetracurve reverse design
15	−6.8	13°	52.34	3.43	1.42	1.87	0.28	0.62	−0.74
16	−6.9	172.1°	45.28	2.60	2.07	2.60	0.29	0.54	−0.32
17	−9.8	32.1°	47.52	3.57	2.02	1.97	0.67	0.70	−0.89
18	−2.21	135.2°	45.28	5.25	4.53	3.97	0.19	1.08	−0.35
19	−0.92	107.1°	49.41	3.97	3.66	3.79	0.15	0.96	−0.02
20	−0.8	140.2°	49.34	0.76	0.34	1.72	0.21	0.29	−0.22
21	−4.3	25.3°	43.24	2.02	2.02	3.92	0.49	0.50	−0.02
22	−10.2	10.6°	49.93	3.38	3.43	4.01	0.23	1.24	−0.12
23	−5.6	4.3°	46.09	2.12	1.62	3.34	0.23	0.60	−0.17
24	−2.0	44.2°	50.76	1.27	1.02	3.88	0.29	0.66	−0.07
Oblong reverse design
25	−9.4	154.1°	41.58	4.96	3.75	3.06	0.69	0.70	−0.37
26	−14.8	0.4°	48.98	5.54	4.53	1.87	0.56	1.12	−0.91
27	−1.0	25.9°	51.22	0.50	0.55	1.52	0.18	0.34	−0.92
28	−5.0	2.3°	46.47	2.12	1.37	2.40	1.03	0.51	−0.38
			Mean (SD)
			48.66 (4.46)D	2.45 (1.41)D	1.88 (1.15)D	3.18 (1.51)D	0.39 (0.20)D	0.94 (1.06)