Alterations Induced by Bangerter Filters on the Visual Field: A Frequency Doubling Technology and Standard Automated Perimetry Study
Table 2
Perimetry values (mean values and standard deviation) without filters (baseline) and with 0.8 and 0.1 Bangerter filters.
Control group
Amblyopic eyes
< 0.05
Sound eyes
<0.05
< 0.05
SAP-MD
Baseline
−1.60 ± 1.00
−3.01 ± 1.54
0.020
−2.79 ± 2.06
0.089
0.224
0.8
−4.56 ± 0.76
−5.73 ± 3.24
0.027
−4.91 ± 3.26
0.145
0.109
0.1
−10.24 ± 1.09
−11.34 ± 2.06
0.050
−11.34 ± 1.66
0.030
0.926
SAP-PSD
Baseline
1.35 ± 0.24
1.74 ± 0.48
0.004
1.60 ± 0.26
0.006
0.244
0.8
1.51 ± 0.19
2.09 ± 0.70
0.007
1.92 ± 0.29
0.004
0.359
0.1
1.85 ± 0.72
2.68 ± 0.78
0.004
2.47 ± 0.99
0.035
0.263
FDT-MD
Baseline
−0.96 ± 0.71
−3.42 ± 3.38
0.005
−2.65 ± 3.11
0.050
0.126
0.8
−2.35 ± 2.37
−5.12 ± 4.37
0.023
−5.34 ± 4.01
0.014
0.430
0.1
−6.37 ± 2.41
−10.47 ± 3.17
0.002
−10.14 ± 3.77
0.006
0.870
FDT-PSD
Baseline
3.15 ± 0.62
3.80 ± 2.21
0.013
4.33 ± 1.31
0.001
0.353
0.8
4.06 ± 1.15
4.55 ± 1.50
0.329
4.53 ± 1.76
0.353
0.363
0.1
4.71 ± 0.77
4.66 ± 1.80
0.926
5.10 ± 2.04
0.743
0.611
Control group versus sound eyes. **Amblyopic eyes versus sound eyes. MD: mean deviation; PSD: pattern standard deviation; SAP: standard automated white-on-white perimetry; FDT: frequency doubling technology perimetry.
