CD	Celiac disease
GFD	Gluten-free diet
IBD	Inflammatory bowel disease
OCT	Optical coherence tomography
OCTA	Optical coherence tomography angiography
RNFL	Retinal nerve fiber layer
TBUT	Tear break-up time
SD-OCT	Spectral-domain optical coherence tomography
EDI-OCT	Enhanced depth imaging optical coherence tomography
GCC	Ganglion cell complex
FAZ	Foveal avascular zone
CRVO	Central retinal vein occlusion
VD	Vascular density