Keratometry device for surgical support

Ventura, Liliane; De Groote, Jean-Jacques; Saia, Paula; Faria e Sousa, Sidney J

doi:10.1186/1475-925X-8-37

BioMedical Engineering OnLine

Table 1 Obtained refractive power and astigmatism's assiociated axis for lens 1 in keratometer Topcon OM-4 and Prototype, and compared to theorethical data.

From: Keratometry device for surgical support

Rotation angle	Theoretical Expected Value	Measurements on Topcon OM-4		Measurements on Prototype
		(D)	θ (degrees)	(D)	θ (degrees)
0	42,2500	41,70	0	42,62	0
1	42,2505	41,70	1	42,62	1
2	42,2518	41,70	2	42,62	2
3	42,2541	41,70	3	42,63	3
4	42,2573	41,71	4	42,63	4
5	42,2614	41,71	5	42,63	5
6	42,2664	41,72	6	42,64	6
7	42,2723	41,72	7	42,64	7
8	42,2791	41,73	8	42,65	7
9	42,2867	41,74	8	42,66	8
10	42,2953	41,75	9	42,67	9
11	42,3047	41,75	11	42,68	11
12	42,3149	41,76	12	42,69	12
13	42,3260	41,78	13	42,70	13
14	42,3378	41,79	14	42,71	14
15	42,3505	41,80	15	42,72	15
16	42,3640	41,81	16	42,74	16
17	42,3783	41,83	17	42,75	16
18	42,3933	41,84	18	42,77	17
19	42,4091	41,86	19	42,78	18
20	42,4255	41,87	20	42,80	19
21	42,4427	41,89	21	42,82	20
22	42,4606	41,91	22	42,83	21
23	42,4791	41,93	22	42,85	22
24	42,4982	41,95	23	42,87	23
25	42,5180	41,97	24	42,89	24
26	42,5383	41,99	25	42,91	25
27	42,5593	42,01	26	42,93	26
28	42,5807	42,03	26	42,96	27
29	42,6027	42,05	28	42,98	28
30	42,6251	42,07	29	43,00	29
31	42,6480	42,09	29	43,02	30
32	42,6713	42,12	30	43,05	31
33	42,6951	42,14	31	43,07	32
34	42,7191	42,16	33	43,10	33
35	42,7436	42,19	34	43,12	34
36	42,7683	42,21	35	43,14	35
37	42,7934	42,24	36	43,17	36
38	42,8187	42,26	37	43,20	37
39	42,8442	42,29	38	43,22	38
40	42,8699	42,31	39	43,25	39
41	42,8957	42,34	40	43,27	40
42	42,9217	42,36	41	43,30	41
43	42,9478	42,39	42	43,33	42
44	42,9739	42,42	43	43,35	43
45	43,0001	42,44	44	43,38	44
46	43,0263	42,47	45	43,40	45
47	43,0524	42,49	46	43,43	46
48	43,0785	42,52	47	43,46	47
49	43,1045	42,54	48	43,48	48
50	43,1303	42,57	49	43,51	49
51	43,1560	42,60	50	43,54	49
52	43,1815	42,62	51	43,56	50
53	43,2068	42,65	52	43,59	51
54	43,2319	42,67	53	43,61	52
55	43,2566	42,69	54	43,64	53
56	43,2810	42,72	55	43,66	54
57	43,3051	42,74	56	43,69	55
58	43,3289	42,77	57	43,71	56
59	43,3522	42,79	58	43,73	57
60	43,3751	42,81	59	43,76	58
61	43,3975	42,83	60	43,78	59
62	43,4195	42,86	61	43,80	60
63	43,4409	42,88	62	43,82	61
64	43,4618	42,90	63	43,84	62
65	43,4822	42,92	64	43,86	63
66	43,5019	42,94	65	43,88	64
67	43,5211	42,96	66	43,90	65
68	43,5396	42,97	67	43,92	66
69	43,5574	42,99	68	43,94	67
70	43,5746	43,01	69	43,96	68
71	43,5911	43,02	70	43,97	69
72	43,6068	43,04	71	43,99	70
73	43,6218	43,05	72	44,01	71
74	43,6361	43,07	73	44,02	72
75	43,6496	43,08	74	44,03	73
76	43,6622	43,09	74	44,05	74
77	43,6741	43,11	75	44,06	75
78	43,6852	43,12	76	44,07	76
79	43,6954	43,13	77	44,08	77
80	43,7048	43,14	78	44,09	78
81	43,7133	43,15	79	44,10	79
82	43,7210	43,15	80	44,11	80
83	43,7277	43,16	81	44,11	81
84	43,7336	43,17	82	44,12	81
85	43,7386	43,17	83	44,12	82
86	43,7427	43,17	84	44,13	83
87	43,7459	43,18	85	44,13	84
88	43,7482	43,18	86	44,13	85
89	43,7495	43,18	87	44,13	86
90	43,7500	43,18	88	44,13	87

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ISSN: 1475-925X

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