Negative electroretinogram in the differential diagnosis of malingering of night blindness in the military.

OBJECTIVE We evaluated the value of unusual electroretinogram (ERG) findings (negative ERG, which is selective reduction in the amplitude of the b-wave) in the differential diagnosis of night blindness in the military. METHODS We surveyed 3 years of data. Presumptive and final clinical diagnoses before and after negative ERG recordings were evaluated… CONTINUE READING