25FWT	25-Foot Walk Test
9HPT	Nine-Hole Peg Test
BREMSO	Bayesian Risk Estimate for Multiple Sclerosis at Onset
CC	Choriocapillaris
CSF	Cerebrospinal Fluid
DCP	Deep Capillary Plexus
EDSS	Expanded Disability Status Scale
FAZ	Foveal Avascular Zone
GCIPL	Ganglion Cell Layer–Inner Plexiform Layer
INL	Inner Nuclear Layer
IPL	Inner Plexiform Layer
MRI	Magnetic Resonance Imaging
MoCA	Montreal Cognitive Assessment
MOGAD	Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease
MS	Multiple Sclerosis
MS-NON	Multiple Sclerosis without Optic Neuritis
MS-ON	Multiple Sclerosis with Optic Neuritis
NMOSD	Neuromyelitis Optica Spectrum Disorder
OCT	Optical Coherence Tomography
OCTA	Optical Coherence Tomography Angiography
ON	Optic Neuritis
OPL	Outer Plexiform Layer
PIRA	Progression Independent of Relapse Activity
pwMS	Patients with Multiple Sclerosis
RNFL	Retinal Nerve Fiber Layer
RoAD	Risk of Ambulatory Disability Score
RRMS	Relapsing–Remitting Multiple Sclerosis
SCP	Superficial Capillary Plexus
SDMT	Symbol Digit Modalities Test
VD	Vessel Density