Mutations in the modifier gene nuclear hormone receptor NR2E3 are associated with several types of retinal degeneration including clumped pigmentary retinal degeneration (CPRD), Goldmann–Favre syndrome (GFS), enhanced S-cone syndrome (ESCS), and autosomal dominant retinitis pigmentosa (adRP) [34]. Here, NR0B1 is linked to enhanced S-cone syndrome.