title: Unusual electroretinograms.
mesh_terms: D001766:Blindness / Q000175:diagnosis; D003937:Diagnosis, Differential; D004596:Electroretinography / Q000379:methods*; D006801:Humans; D007046:Hysteria / Q000175:diagnosis; D008268:Macular Degeneration / Q000175:diagnosis; D011601:Psychophysics; D012162:Retinal Degeneration / Q000175:diagnosis; D012164:Retinal Diseases / Q000175:diagnosis*; D012173:Retinitis / Q000175:diagnosis; D012174:Retinitis Pigmentosa / Q000175:diagnosis