Papers Published

1. Doslak, M.J. and Plonsey, R. and Thomas, C.W., The effects of variations of the conducting media inhomogeneities on the electroretinogram, IEEE Trans. Biomed. Eng. (USA), vol. BME-27 no. 2 (1980), pp. 88 - 94 .
   (last updated on 2007/04/16)

   Abstract:
   A mathematical model was developed to simulate the spatially varying ERG field at an arbitrary instant of time. Laplace's equation was solved numerically within the symmetrical spherical volume conductor by utilizing a finite-difference successive overrelaxation technique. Excellent accuracy was demonstrated when compared with analytical solutions for several simplified configurations of the inhomogeneities. The model was utilized to investigate the effects of the eye structures on the electroretinogram (ERG). This was accomplished by varying their conductivities individually over ranges taken from data in the literature and comparing the resultant changes in the ERG electric field. The results indicate that under all conditions large variations in the lens and cornea conductivities have a negligible effect on the field

   Keywords:
   bioelectric potentials;eye;physiological models;