True statements about EOG (electro-oculogram) include:
a. the EOG light-peak to dark-trough ratio is reduced in central retinal vein occlusion
b. the light peak of EOG is abnormal in Best's disease
c. the EOG light rise is produced by depolarization of the basal membrane of the retinal pigment
epithelium
d. all above
a. the EOG light-peak to dark-trough ratio is reduced in central retinal vein occlusion
b. the light peak of EOG is abnormal in Best's disease
c. the EOG light rise is produced by depolarization of the basal membrane of the retinal pigment
epithelium
d. all above