DM	Diabetes Mellitus
DEK	Diabetic Epithelial Keratopathy
SPK	Superficila Punctate Keratitis
CCET	Central Corneal Epithelial Thickness
AS-OCT	Anterior Segment Optical Coherence Tomography
IVCM	In Vivo Confocal Microscopy
VHF-US	Very High Frequency Ultrasound
SD-OCT	Spectral Domain Optical Coherence Tomography
CCT	Central Corneal Thickness
BCVA	Best Corrected Visual Acuity
IOP	Intraocular Pressure
TBUT	Tear Film Break-up Time
NPDR	Non-Proliferative Diabetic Retinopathy
PDR	Proliferative Diabetic Retinopathy
TSCM	Tandem Scanning Confocal Microscopy
EGFR	Epidermal Growth Factor Receptor
MMP	Matrix Metalloproteinase
BECD	Basal Epithelial Cell Density
AGE	Advanced Glycantion End-Products
ROS	Reactive Oxygen Species
SBNP	Sub-Basal Nerve Plexus
NCCA	Non-Contact Corneal Aesthesiometry
ZO	Zonula Occludens
ECD	Endothelial Cell Density
ORA	Ocular Response Analyzer
CST	Corvis ST
CH	Corneal Hysteresis
CRF	Corneal Resistance Factor
NGF	Nerve Growth Factor