CNGA3 and achromatopsia: Before identifying which genes would be used to create our potentially reversible achromatopsia mouse model, we tested ERG in B6.RHJ-Cnga3cpfl5/BocJ mice (JAX Stock No. 005978, hereafter Cnga3cpfl5 mice) [24] at one-month-old to validate whether dysfunction of the Cnga3 protein in mice could phenocopy the ERG features exhibited in patients with achromatopsia.