The effects of direct-current magnetic fields on turtle retinas in vitro

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Science  13 May 1983:
Vol. 220, Issue 4598, pp. 715-717
DOI: 10.1126/science.6682247


Direct-current magnetic fields of 10 to 100 gauss cause a significant short-term reduction of the in vitro electroretinographic b-wave response in turtle retina. This response compression is not accompanied by the usual reduction in retinal sensitivity that occurs with background illumination. Furthermore, this effect is obtained only briefly after the offset of ambient lighting in the diurnal light-dark cycle of nonhibernating animals.