At present, the relationship between photosensitive epilepsy and other genes involved is not very clear, in spite of bromodomain-containing protein 2 and CHD2 being known as a likely susceptible gene in photosensitive epilepsy (Lorenz et al., 2006; Galizia et al., 2015; Poleon and Szaflarski, 2017). The gene discussed is BRD2; the disease is photosensitive epilepsy.