Figure 4. Electroretinographic amplitude
measurements two weeks after optic nerve transection. Averaged data
(mean±SEM) of ERG amplitudes versus stimulus intensity both from albino
(A, C; n=7) and pigmented rats (B, D;
n=5) from recordings obtained two weeks after ONT. Open symbols show
data averaged from unoperated right eyes and filled symbols show data
averaged from operated left eyes. A, B: Data
corresponding to positive scotopic threshold responses (pSTR) are shown
as circles and that corresponding to negative scotopic threshold
responses (nSTR) are shown as triangles. C, D:
Amplitudes corresponding to the a-wave are shown as triangles and those
corresponding to b-wave are shown as circles. A significant reduction
in the wave amplitudes of the pSTR, nSTR, b-wave scotopic response, and
a- and b-wave was observed in the operated eyes (t-test;
p<0.001) when compared to the unoperated control eyes.