25(OH)D	25-Hydroxyvitamin D
AMD	Age-related macular degeneration
BCVA	Best-corrected visual acuity
BRAO	Branch retinal artery occlusion
BRVO	Branch retinal vein occlusion
CC	Choriocapillaris
CDVA	Corrected distance visual acuity
CMT	Central macular thickness
CRAE	Central retinal artery equivalent
CRAO	Central retinal artery occlusion
CRVE	Central retinal vein equivalent
CRVO	Central retinal vein occlusion
CT	Choroidal thickness
CVI	Choroidal vascularity index
DCP	Deep capillary plexus
DME	Diabetic macular edema
DMI	Diabetic macular ischemia
DR	Diabetic retinopathy
FAZ	Foveal avascular zone
FL	Full retinal layer
FRT	Foveal retinal thickness
GCC	Ganglion cell complex
GC–IPL	Ganglion cell–inner plexiform layer
GCL	Ganglion cell layer
IVB	Intravitreal bevacizumab
LA	Luminal area
OCT	Optical coherence tomography
OCTA	Optical coherence tomography angiography
ONH	Optic nerve head
PD	Perfusion density
RNFL	Retinal nerve fiber layer
RPE	Retinal pigment epithelium
RVO	Retinal vein occlusion
SA	Stromal area
SCP	Superficial capillary plexus
SFCT	Subfoveal choroidal thickness
T1DM	Type 1 diabetes mellitus
TCA	Total choroidal area
VD	Vessel density
VDD	Vitamin D deficiency
VDR	Vitamin D receptor
VEGF	Vascular endothelial growth factor