FOSs	Fibre Optic Sensors (FOSs)
POSs	Polymer-based optical sensors
OF	Optical Fibre
SPR	Surface Plasmon Resonance
POFs	Polymer Optical Fibres
FBGs	Fibre Bragg Gratings
OCT	Optical Coherence Tomography
IOP	Intraocular Pressure
PCF	Photonic Crystal Fibre
SMF	Single-mode Fibre
FPI	Fabry–Pérot Interferometer
MMF	Multi-mode Fibre
MEMs	Micro-Electromechanical Systems
LSPR	Localized Surface Plasmon Resonance
LMR	Lossy Mode Resonance
HST	Hollow Silica Tube
PID	Proportional Integral Derivative
PANi	Polyaniline
TFBG	Tilted Fibre Bragg Grating
PAAm	Polyacrylamide
GO	Graphene Oxide
GOD	Glucose Oxidase
LPFG	Long-period Fibre Grating
TOFI	Tapered Optical Fibre Interferometer
3-APBA	3-Aminophenylboronic Acid
LDOF	Lossy Dielectric Optical Fibre
HBF	High-birefringence fibre
PLA	Polylactic acid
FDA	Food and Drug Administration
PEG	Polyethylene Glycol
POC	Poly (Octamethylene Citrate)
POMC	Poly (Octamethylene Maleate Citrate)
PVC	Polyvinyl Chloride
SU-8	Negative Photoresist Polymer
PLLA	Poly (L-Lactic Acid)
PDLLA	Poly (D, L-Lactic Acid)
PLGA	Poly (L-Lactic-Co-Glycolic Acid)
PDLGA	Poly (D, L-Lactic-Co-Glycolic Acid)
PCL	Poly (ε-Caprolactone)
PGs	Phosphate Glass
PDMS	Polydimethylsiloxane
PAA	Polyacrylic Acid
AG	Agarose Hydrogel
AuNPs	Gold Nanoparticles
MRI	Magnetic Resonance Imaging
CT	Computed Tomography
EHRs	Electronic Health Records
NCAs	National Competent Authorities
ANSI	American National Standards Institute
AAMI	Association for the Advancement of Medical Instrumentation
TIR	Technical Information Report
MDR	Medical Devices Regulation
IVDR	In Vitro Diagnostic Regulation