Difference of spatial summation property between b and d waves in focal electroretinogram of the cat.

  • Tomohiko Usui
  • Published 1992 in
    Ophthalmologica. Journal international d…


A new system for focal electroretinogram (ERG) using a charge-coupled device camera was developed. With this device, focal ERGs to on-off luminance modulation of uniform fields with different area (circle diameter; 16, 12, 8, 6 and 3 degrees) centered on the area centralis were recorded in 12 eyes of 6 cats. With a decrease of the stimulus area, the… (More)


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