Can Variability of Pattern ERG Signal Help to Detect Retinal Ganglion Cells Dysfunction in Glaucomatous Eyes?
Table 2
Clinical characteristics of 37 early glaucoma patients.
EGp
Age
Eye
ph1
ph2
ph3
ph4
ph5
amp1
amp2
amp3
amp4
amp5
MD
PSD
RNFL
GCC
CV_p
CV_a
Phase
Ampl
SD_p
SD_a
CCT
IOP
( rad)
( rad)
( rad)
( rad)
( rad)
(V)
(V)
(V)
(V)
(V)
(db)
(db)
(m)
(m)
(%)
(%)
( rad)
(V)
(m)
(mmHg)
#1
49
R
0.09
0.40
0.16
0.33
−0.11
1.57
1.47
1.44
1.43
1.38
−3
2.84
89
83
8.32
4.18
0.17
1.46
0.18
0.06
560
16
#2
49
L
0.27
0.44
0.72
0.60
0.33
1.52
1.24
0.81
0.32
1.37
−2
7
75
70
6.67
41.5
0.47
1.05
0.17
0.44
543
15
#3
69
R
0.24
0.35
0.18
0.19
−0.01
0.73
0.60
0.63
0.75
0.57
−1.02
1.89
82
80
5.42
10.8
0.19
0.66
0.12
0.07
515
14
#4
62
R
0.12
0.42
0.52
0.63
0.63
1.61
1.87
1.70
1.86
1.80
−4
4.29
92
83
7.76
5.52
0.46
1.77
0.19
0.1
537
15
#5
46
L
−0.61
−0.43
−0.80
−0.50
−0.30
1.11
0.81
0.84
0.95
0.79
−0.74
1.25
82
78
11.3
13.5
−0.53
0.9
0.17
0.12
595
17
#6
65
R
−0.44
−0.30
−0.58
−0.42
−0.29
1.34
0.72
1.11
1.06
0.74
−5.9
7.85
74
71
6.53
23.6
−0.41
0.99
0.1
0.23
518
14
#7
60
L
−0.16
0.34
−0.03
0.09
−0.04
1.20
1.04
1.12
0.96
1.01
−2.14
4.36
63
77
8.39
7.93
0.04
1.07
0.17
0.08
540
14
#8
45
R
−0.49
−0.80
−0.55
−0.45
−0.77
0.70
0.60
0.18
0.40
0.91
−6.25
1.76
95
82
10.5
44.9
−0.61
0.56
0.15
0.25
612
17
#9
63
L
0.01
−0.44
0.20
0.32
−0.29
1.03
0.70
0.94
0.88
0.71
−3.54
2.65
100
94
14.6
15.1
−0.04
0.85
0.29
0.13
560
15
#10
35
R
0.22
−0.18
0.12
0.27
0.41
1.85
1.45
1.29
1.46
1.30
−6.11
2.18
71
77
9.06
13.7
0.17
1.47
0.2
0.2
550
16
#11
59
L
−0.26
0.32
0.47
0.06
0.35
1.11
0.67
0.78
0.76
0.79
−2.01
1.22
73
70
11.9
18.4
0.19
0.82
0.26
0.15
530
15
#12
39
L
−0.37
−0.10
−0.19
0.27
0.10
1.21
0.77
1.04
0.79
0.82
−1.5
1.87
83
77
11.5
18.3
−0.06
0.93
0.22
0.17
525
15
#13
57
R
0.13
−0.08
0.14
−0.01
0.20
1.42
1.48
0.94
1.11
1.00
−5.11
7.75
77
67
5.07
18.5
0.08
1.19
0.11
0.22
570
16
#14
54
L
−0.51
−0.31
−0.22
0.01
0.07
1.37
1.17
1.16
1.35
0.97
−3.21
2.79
97
85
11.7
12.4
−0.19
1.2
0.21
0.15
595
17
#15
59
L
0.36
0.76
0.10
0.27
0.36
1.05
0.79
1.10
1.03
1.11
−1.11
2.94
95
84
9.1
11.6
0.37
1.02
0.22
0.12
560
16
#16
75
R
−0.72
−0.08
−0.20
−0.06
−0.10
0.76
0.92
0.75
0.82
0.83
−2.13
3.55
87
88
14.1
7.46
−0.23
0.82
0.25
0.06
525
17
#17
65
R
−0.31
−0.59
−0.29
−0.31
−0.46
0.77
1.03
1.05
0.60
0.87
−3.57
2.61
92
86
7.09
19.4
−0.39
0.87
0.11
0.17
505
16
#18
60
R
0.19
0.32
−0.08
0.19
−0.19
0.56
0.52
0.87
0.56
0.62
−5.65
3.96
85
69
9.07
20
0.09
0.63
0.19
0.12
543
15
#19
81
R
−0.97
−0.63
−0.86
−0.71
−0.92
1.13
0.40
0.79
0.39
1.01
0.35
1.38
83
68
10.8
40.9
−0.82
0.75
0.13
0.3
575
16
#20
45
R
0.22
0.58
0.51
0.66
0.33
1.41
1.52
1.49
0.92
1.07
−1.2
6.3
73
69
6.58
18.9
0.46
1.28
0.16
0.24
555
15
#21
40
L
−0.11
0.11
0.32
0.18
0.55
1.82
1.58
1.06
1.85
1.46
−2.06
2.38
77
74
10
18.6
0.21
1.55
0.22
0.29
523
14
#22
72
L
0.48
0.12
0.50
0.37
0.48
1.18
0.93
1.19
0.98
0.83
−2.89
3.03
78
72
5.88
13.8
0.39
1.02
0.14
0.14
545
14
#23
52
R
−0.57
−0.38
−0.04
−0.21
−0.31
1.45
1.54
1.39
1.13
1.55
−4.5
1.62
90
82
10.3
10.8
−0.3
1.41
0.17
0.15
569
15
#24
76
L
0.12
−0.28
0.03
−0.07
−0.44
0.35
1.59
0.66
0.35
0.35
−6.49
3.76
78
66
10.9
72.7
−0.13
0.66
0.2
0.48
555
15
#25
40
R
−0.20
0.08
−0.06
0.03
0.09
1.02
0.64
0.75
0.71
0.79
−3.22
5.72
69
77
5.55
16.8
−0.01
0.78
0.11
0.13
525
16
#26
49
R
0.04
−0.04
0.07
0.27
−0.41
1.16
1.03
0.99
1.00
1.18
−2.15
1.08
77
67
11.3
7.81
−0.02
1.07
0.22
0.08
495
17
#27
43
L
−0.37
−0.19
0.05
−0.14
−0.21
0.88
1.67
1.28
1.21
0.71
−1.52
2.33
88
74
7.5
29.1
−0.17
1.15
0.14
0.33
536
15
#28
68
L
−0.09
−0.41
−0.04
−0.49
−0.07
1.18
1.38
0.88
1.22
1.04
−0.06
1.48
96
84
10.7
15
−0.22
1.14
0.19
0.17
520
16
#29
49
R
0.75
0.14
0.57
0.58
0.54
0.88
0.85
0.64
1.04
0.57
−4.55
2.24
71
74
7.99
21.2
0.52
0.8
0.2
0.17
578
17
#30
70
R
0.45
0.68
0.22
0.74
0.26
0.61
0.61
0.52
0.51
0.38
−0.45
1.59
78
76
8.64
15.5
0.47
0.53
0.21
0.08
542
17
#31
67
R
−0.43
−0.82
−0.45
−0.45
−0.29
0.40
0.34
0.29
0.40
0.77
−5.94
7.15
80
78
11.6
38.5
−0.49
0.44
0.18
0.17
523
17
#32
42
R
−0.71
−0.91
−0.86
−0.62
−0.72
0.24
0.26
0.54
0.44
0.63
−2.26
3.45
86
69
8.52
36
−0.76
0.42
0.11
0.15
555
18
#33
65
R
−0.41
−0.17
0.04
0.15
−0.05
1.64
1.17
1.02
1.31
1.02
−2.25
3.32
88
73
10.1
18.7
−0.09
1.23
0.19
0.23
567
17
#34
62
L
−0.85
−0.77
−0.82
−0.71
−0.49
0.43
0.29
0.48
0.42
0.24
−1.16
1.69
76
79
10.1
24.7
−0.73
0.37
0.13
0.09
545
17
#35
63
L
−0.26
−0.10
−0.22
0.02
−0.24
1.38
1.32
1.11
1.43
1.24
−2.06
3.92
81
72
5.7
8.65
−0.16
1.3
0.11
0.11
515
15
#36
58
R
−0.04
−0.01
0.16
0.06
−0.03
1.12
1.18
0.81
1.05
0.67
−6.71
7.78
60
76
3.74
19.9
0.03
0.97
0.08
0.19
535
15
#37
61
L
−0.33
−0.29
0.07
−0.20
−0.26
0.67
0.75
0.56
0.48
0.65
−3.25
5.02
70
76
8.09
15.3
−0.2
0.62
0.15
0.1
585
14
PERG phase and amplitude (values of 5 consecutive tests), mean deviation (MD), pattern standard deviation (PSD), retinal nerve fiber layer thickness (RNFL), ganglion cell complex (GCC), coefficient of variation of amplitude (CV_a), coefficient of variation of phase (CV_p), mean phase (phase), mean amplitude (Ampl), standard deviation of amplitude (SD_a), standard deviation of phase (CV_p), central corneal thickness (CCTi), and intraocular pressure (IOP) in 37 early glaucoma patients (EGp).
