It has been reported that PG alone or in combination with other substances, administered orally, can slow down photoreceptor cell death in rd10 and rd1 mice (retinal degeneration (rds) experimental models for RP) by reducing oxidative stress and decreasing the levels of inflammatory cytokines while increasing the amounts of antioxidant molecules [7,8,9,10,11,12]. Here, PDE6B is linked to retinitis pigmentosa 1.