Figure 1. Electroretinogram waveforms recorded from 5-month-old mice. A: Double heterozygous mouse (+ +/Cdh23^v-6J Pcdh15^av-Jfb), a Cdh23^v-6J homozygote that is heterozygous for the Pcdh15^av-Jfb allele (Cdh23^v-6J +/Cdh23^v-6J Pcdh15^av-Jfb), and a double homozygous (Cdh23^v-6J Pcdh15^av-Jfb/Cdh23^v-6J Pcdh15^av-Jfb) mouse. Dark-adapted scotopic responses to the stimulus intensity range from −6.9 to +0.6 log cd-s/m². B: Light-adapted photopic responses to the stimulus intensity range from −0.9 to +0.6 log cd-s/m² on a 34 cd/m² background.