AMD	Age-related macular degeneration
DR	Diabetic retinopathy
NAD+	Nicotinamide adenine dinucleotide
NAMPT	Nicotinamide phosphoribosyl transferase
NMNAT	Nicotinamide mononucleotide adenylyl transferase
NAM	Nicotinamide
NMN	Nicotinamide mononucleotide
NR	Nicotinamide riboside
RPE	Retinal pigment epithelium
CNV	Choroidal neovascularization
anti-VEGF	Anti-vascular endothelial growth factor
RGC	Retinal ganglion cell
BRB	Blood-retinal barrier
HO-1	Heme oxygenase-1
AGEs	Advanced glycation end-products
PKC	Protein kinase C
SIRT	Sirtuin
STZ	Streptozotocin
GFAP	Glial fibrillary acidic protein
ROS	Reactive oxygen species
IP	Intraperitoneal
GSPE	Grape seed proanthocyanidin extract
PDR	Proliferative DR
HIF	Hypoxia inducible factor