Regulators of the inflammatory state, such as Dexamethasone and the M-CSF that stimulates Müller glia-based photoreceptor regeneration in our injection assays, might therefore provide advanced options for clinical treatments of retinal disease, as has also been suggested for corticosteroid management of early phases of spinal cord injury (Nelson et al., 2019). Here, CSF1 is linked to Abnormal retinal morphology.