BR	Blink Rate
TBUT	Tear Break-Up Time
DED	Dry Eye Disease
NK	Neurotrophic Keratitis
AD	Alzheimer’s Disease
PD	Parkinson’s Disease
H&Y	Hoehn and Yahr
CNFD	Corneal Nerve Fiber Density
OSDI	Ocular Surface Disease Index
GBS	Guillain-Barré Syndrome
TN	Trigeminal Neuralgia
DREZ	Dorsal Root Entry Zone
CIC	Conjunctival Impression Cytology
MS	Multiple Sclerosis
CMT	Charcot–Marie–Tooth Disease