Table 2.
Comparison the foveal sensitivity, mean sensitivity, mean deviation, and VFI among the three different fixation points.
| Variables | Central gaze (CG) | Adduction (AD) | Abduction (AB) | p-value | ||||
|---|---|---|---|---|---|---|---|---|
| CG vs. AD | CG vs. AB | AD vs. AB | ||||||
| Overall | ||||||||
| Foveal sensitivity (dB) | 32.4 ± 3.4 | 33.1 ± 2.6 | 33.1 ± 3.1 | 0.230 | ||||
| Mean sensitivity (dB) | 28.8 ± 1.6 | 28.7 ± 1.9 | 29.1 ± 1.6 | 0.024 | 0.384 | 0.042 | 0.020 | CG = AD < AB |
| Mean deviation (dB) | − 0.4 ± 1.0 | − 0.5 ± 1.3 | − 0.3 ± 1.3 | 0.353 | ||||
| VFI | 99.0 ± 1.4 | 98.8 ± 2.1 | 99.1 ± 1.2 | 0.345 | ||||
| Young | ||||||||
| Foveal sensitivity (dB) | 32.4 ± 3.6 | 33.7 ± 2.3 | 33.9 ± 2.2 | 0.067 | ||||
| Mean sensitivity (dB) | 29.9 ± 1.0 | 29.9 ± 1.3 | 30.0 ± 1.2 | 0.676 | ||||
| Mean deviation (dB) | − 0.2 ± 1.0 | − 0.2 ± 1.3 | − 0.2 ± 1.3 | 0.837 | ||||
| VFI | 99.3 ± 1.1 | 99.2 ± 1.2 | 99.2 ± 1.0 | 0.901 | ||||
| Elderly | ||||||||
| Foveal sensitivity (dB) | 32.4 ± 3.3 | 32.5 ± 2.9 | 32.4 ± 3.7 | 0.975 | ||||
| Mean sensitivity (dB) | 27.7 ± 1.4 | 27.5 ± 1.7 | 28.1 ± 1.3 | 0.026 | 0.403 | 0.025 | 0.033 | CG = AD < AB |
| Mean deviation (dB) | − 0.6 ± 1.0 | − 0.8 ± 1.3 | − 0.5 ± 1.3 | 0.385 | ||||
| VFI | 98.8 ± 1.5 | 98.3 ± 2.6 | 99.0 ± 1.4 | 0.255 | ||||
VFI visual field index.