Research on Calculation of the IOL Tilt and Decentration Based on Surface Fitting

Table 2

IOL decentration and tilt obtained from the image with different scanned angle.

Scanned angle/°	Tilt/°						Decentration/mm
	Case  6		Case  4		Case  12		Case  6		Case  4		Case  12
	Surface fitting	AS-OCT	Surface fitting	AS-OCT	Surface fitting	AS-OCT	Surface fitting	AS-OCT	Surface fitting	AS-OCT	Surface fitting	AS-OCT
0	2.72	3.60	2.21	2.50	3.60	4.20	0.18	1.86	0.15	0.01	0.03	—
15	3.93	1.50	1.70	3.40	4.20	3.50	0.68	1.69	0.35	0.85	0.13	0.68
30	3.82	1.90	1.47	4.10	4.50	5.40	0.44	1.39	0.52	0.79	0.29	0.74
45	3.41	3.20	1.21	2.00	4.53	4.10	0.17	1.32	0.66	0.78	0.42	0.31
60	2.83	1.30	0.40	0.50	4.21	3.60	0.11	2.40	0.75	0.33	0.53	0.28
75	2.03	4.20	0.30	0.50	3.64	2.90	0.38	1.67	0.80	0.67	0.60	0.21
90	1.1	2.00	0.92	1.60	2.79	2.10	0.63	2.16	0.78	0.16	0.63	0.03
105	0.04	0.00	1.40	1.00	1.77	1.20	0.83	2.34	0.72	0.59	0.62	0.07
120	0.98	2.40	1.85	2.10	0.62	0.00	0.98	2.34	0.61	0.31	0.56	0.42
135	1.13	3.10	2.21	2.70	0.59	0.00	0.87	—	0.45	0.03	0.47	0.03
150	2.74	2.40	2.40	3.50	1.74	1.20	1.07	1.94	0.26	0.03	0.34	0.24
165	3.38	2.30	2.35	4.90	2.76	3.50	1.01	1.77	0.06	0.77	0.20	0.32
IOL	3.92	4.20	2.37	4.90	4.55	5.40	1.08	2.40	0.80	0.85	0.63	0.74