C/D	Cup-to-disk ratio
ETDRS	Early Treatment Diabetic Retinopathy Study
FAZ	Foveal Avascular Zone
FI	Flow Index
GCIPL	Ganglion Cell-Inner Plexiform Layer
I	Inferior
ILM	Inner Limiting Membrane
IPL	Inner Plexiform Layer
ISNT	Inferior > Superior > Nasal > Temporal
LogMAR	Logarithm of Minimum Angle of Resolution
mm	Millimeter
mm2	Square Millimeter
MT	Macular Thickness
μm	Micrometer
N	Nasal
NI	Nasal Inferior
NS	Nasal Superior
OCT	Optical Coherence Tomography
OCT-A	Optical Coherence Tomography Angiography
ONH	Optic Nerve Head
PD	Perfusion Density
PF	Perfusion
RNFL	Retinal Nerve Fiber Layer
RNFLT	Retinal Nerve Fiber Layer Thickness
RPC	Radial Peripapillary Capillary
RPE	Retinal Pigment Epithelium
S	Superior
SD	Standard Deviation
SD-OCT	Spectral Domain Optical Coherence Tomography
T	Temporal
TI	Temporal Inferior
TS	Temporal Superior
VD	Vessel Density
%	Percent