AHI	Apnea–Hypopnea Index
BMI	body mass index
BRB	blood–retinal barrier
CI	confidence interval
CLOCK	circadian locomotor output cycles kaput
CPAP	continuous positive airway pressure
CRP	C-reactive protein
CRVO	central retinal vein occlusion
CSA	central sleep apnea
CSC	central serous chorioretinopathy
DES	dry eye syndrome
DM	diabetes mellitus
DME	diabetic macular edema
DR	diabetic retinopathy
ECM	extracellular matrix
FES	floppy eyelid syndrome
fT3	free triiodothyronine
HR	hazard ratio
ICAM	intercellular adhesion molecule
IL	interleukin
IRR	incidence rate ratio
IOP	intraocular pressure
KC	keratoconus
MMP9	matrix metalloproteinase 9
NAION	non-arteritic anterior ischemic optic neuropathy
NPDR	non-proliferative diabetic retinopathy
NTG	normal tension glaucoma
ODI	oxygen desaturation index
OR	odds ratio
OSA	obstructive sleep apnea
PDR	proliferative diabetic retinopathy
PSG	polysomnography
RNFL	retinal nerve fiber layer
RVO	retinal vein occlusion
SA	sleep apnea
TBUT	tear break-up time
TED	thyroid eye disease
TNF-α	tumor necrosis factor-alpha
TSH	thyroid-stimulating hormone
VCAM	vascular cell adhesion molecule
VEGF	vascular endothelial growth factor
VEP	visual evoked potential