Shinzato K, Yokoyama M, Uji Y, Ichikawa H
Doc Ophthalmol. 1986 Jan 31;62(1):19-24. doi: 10.1007/BF00140542.
Electroretinographic studies were performed in three congenital tritanopic subjects in a single pedigree. The b-waves were recorded in the presence of white and intense yellow adaptation in response to 16 monochromatic light stimuli. Compared with the response of normal subjects, a marked reduction or a lack of the blue cone responses was clearly shown in the spectral response patterns of tritanopes. Electroretinograms elicited by strong white stimulation or xenon flashes showed negative responses (a-waves larger than b-waves) with normal rod function in each tritanopic subject. This finding points to abnormalities of red cone and green cone function as well in tritanopes.
