The Role of the Macula in the Electroretinogram of Monkey and Man*

ATYPICAL RETINITIS PIGMENTOSA A Case Report

“…Furthermore, the ERG-method used in this case gives information on the overall function of the retina; the still-functional central part of the retina might not be large enough to produce any registrable electrical response. As shown by Jacobson et al (1960) and Fransois & De Rouck (1966), among others, a retinal lesion must be of a certain size to influence the ERG response. Conversely, a very small area of functional retina may not be sufficient to elicit any registrable electrical potential, yet may allow certain visual functions to remain intact.…”

Chorioiditis geographica

“…Hervorzuheben sind die elektroophthalmologischen Ergebnisse. Man kann bei der Chorioiditis oft em norrnales elektrisches Verhalten finden (Jacobson, 1960 Laatikainen und Mitarb. (1981) an, daB em lokaler immunologischer ProzeB eine wesentliche Rolle spielt.…”

Electroretinography in Solar Macular Injury

“…Whereas Jacobson, Basar and Kornzweig (1956), Bessiere and Chabot (1957), Ruedemann (1959), Jacobson et al (1960) observed a lowered response to red light stimuli in patients with various types of macular affections, Franqois, De Rouck and Verriest (1957) and Rendahl (1957) did not report, in these same macular disease, any alteration in the photopic ERG. Also Iser and Goodman (1956) are of the opinion that the photopic ERG does not show clear changes, at least in the lesions involving the macula alone.…”