Great advances in retinal ganglion cells survival(RGCs),optic nerve preservation and regeneration have been made in the past 15years.Nowadays,we know that RGCs are capable of regenerating the full length of the optic nerve,cross the chiasm,enter the brain and reinnervate visual targets.In order to obtain successful regen- Great advances in retinal ganglion cells survival (RGCs), optic nerve preservation and regeneration have been made in the past 15years. Nonadays, we know that RGCs are capable of regenerating the full length of the optic nerve, cross the chiasm, enter the brain and reinnervate visual targets.In order to obtain successful regen-