**14. Stem cells**

Much research is still yet to be done on stem cells and neuroprotection. Stem cells can supply neurotrophins and modulate matrix metalloproteinases after an injury which can be neuro‐ protective and limit neuronal damage [86]. However in a pre-clinical model of glaucoma, intravitreal stem cell injections have been shown to enhance the survival of the RGC [23].
