Research Article

Evaluation of Retinal Nerve Fiber Layer Thickness, Electroretinogram and Visual Evoked Potential in Patients with Alzheimer’s Disease

Table 5

Comparison of PERG readings of the right eye between AD patients and control.

PERG parametersAD (N = 25) mean (SD)Control (N = 25) mean (SD)tMeans differenceConfidence interval 95%df value
LowerUpper

N35 (ms)40.32 (6.63)36.44 (8.03)−1.863−3.88−8.0670.30748.000.069
P50 (ms)63.88 (7.94)54.76 (8.24)−3.985−9.12−13.722−4.51848.00<0.001
N95 (ms)107.96 (8.01)106.64 (8.59)−0.562−1.32−6.0443.40448.000.577
P50 wave (μV)1.79 (0.64)4.49 (1.44)8.5742.702.0623.34533.17<0.001
N95 wave (μV)2.43 (0.90)6.21 (2.65)6.7563.782.6344.91929.43<0.001

Independent t-test.