A number of investigators have already used the electroretinogram (ERG) for studying color deficiency. Among them, Armington1 (1952) reported that in the case of protanopes the ERG elicited by the red-light stimulus is lacking in the x-wave, which was first described by Motokawa and Mita2 (1942). On the other hand, Vukovich3 (1952) reported that under all conditions of stimulation of the totally color-blind eye a complete absence of the x-wave was apparent as well as a highly reduced a-wave and a less pronounced reduction of the b-wave. These electroretinographic studies on the subject with anomalous color vision were useful not only for analysis of the normal ERG but also for investigating the mechanism of color disability. Thus, it might be of value to settle the question whether the cause of anomalous color vision lies in the retina or in any optic pathways or
SUZUKI TA. ERG of Congenital Totally Color-Weak Eye Accompanied by Lesion of Optic Nerve. AMA Arch Ophthalmol. 1959;62(3):386–395. doi:10.1001/archopht.1959.04220030042007
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