Electroretinographic findings in fellow eyes of patients with central retinal vein occlusion
H. Sakaue, O. Katsumi and T. Hirose
Eye Research Institute of Retina Foundation, Boston, MA 02114.
In the study of 50 patients with unilateral central retinal vein occlusion,
abnormal electroretinograms were observed in the fellow eyes of 18 patients
(36%). The abnormal electroretinograms were supernormal in 15 patients
(30%) and negative (+) in the fellow eyes of 3 patients (6%). The
amplitudes of a and b waves were significantly greater in the fellow eye
than those in normal controls. During a 1- to 9-year follow-up, central
retinal vein occlusion developed in three fellow eyes (6%). The abnormal
electroretinograms in the fellow eyes reflected such factors as circulatory
disturbance of the retina that might have led to central retinal vein
occlusion in the affected eye.
