Table 5 Full field Electroretinography (ff-ERG) responses in PD patients compared to healthy controls
From: Retinal functional and structural changes in patients with Parkinson’s disease
PD patients [mean (SD)] (n = 50) | Controls [mean (SD)] (n = 50) | P-value | |||
|---|---|---|---|---|---|
Dark-adapted ERG (rod response) | |||||
RT eye | a wave | Latency (milliseconds) | 19.46 (3.66) | 17.11(0.88) | < 0.001* |
Amplitude (µV) | 35.87(7.92) | 43.70(1.68) | < 0.001* | ||
b wave | Latency (milliseconds) | 38.15(3.61) | 34.33(0.92) | < 0.001* | |
Amplitude (µV) | 43.60(12.29) | 64.60(1.85) | < 0.001* | ||
LT eye | a wave | Latency (milliseconds) | 19.75(3.94) | 17.02(0.86) | < 0.001* |
Amplitude (µV) | 35.46(8.09) | 43.60(1.78) | < 0.001* | ||
b wave | Latency (milliseconds) | 38.41(4.03) | 34.40(0.94) | < 0.001* | |
Amplitude (µV) | 42.92(12.77) | 65.02(2.51) | < 0.001* | ||
Light-adapted ERG (cone response) | |||||
RT eye | a wave | Latency (milliseconds) | 18.53 ± 2.37 | 17.17(0.75) | < 0.001* |
Amplitude (µV) | 8.36(4.82) | 24.7(2.64) | < 0.001* | ||
b wave | Latency (milliseconds) | 38.39(2.29) | 33.70(1.62) | < 0.001* | |
Amplitude (µV) | 26.52(8.86) | 51.13(6.61) | < 0.001* | ||
LT eye | a wave | Latency (milliseconds) | 18.57(2.58) | 16.97(0.78) | < 0.001* |
Amplitude (µV) | 8.34(4.60) | 24.39(2.81) | < 0.001* | ||
b wave | Latency (milliseconds) | 38.41(2.37) | 33.78(1.57) | < 0.001* | |
Amplitude (µV) | 27.12(8.94) | 50.76(7.24) | < 0.001* | ||