Table 1.

Details of the clinical findings of the right eye.

Time point after trigeminal nerve block	Clinical findings	Stage of NK	Corneal sensation (mm)
5 days: First visit	Severe conjunctival hyperemia Corneal superficial neovascularization Corneal epithelial defect Descemet's membrane folds Mild stromal edema	Stage 2	<10
1 week	Severe conjunctival hyperemia Corneal superficial neovascularization Corneal epithelial defect Cloudy and irregular corneal epithelium Descemet's membrane folds	Stage 2	<10
1 month	Superficial punctate keratopathy (SPK) Severe conjunctival hyperemia Corneal superficial neovascularization Corneal stromal edema	Stage 2	10
2 months	Superficial punctate keratopathy (SPK) Conjunctival hyperemia Corneal superficial neovascularization Irregularity of corneal epithelium Stromal scarring in the central cornea	Stage 1-2	10
5 months	Mild irregularity of corneal epithelium, stromal scarring in the central cornea, conjunctival hyperemia and corneal superficial neovascularization are overall improving.	Stage 1	50
6 months	SPK and conjunctival hyperemia, corneal superficial neovascularization, and corneal stromal edema were all ameliorated.		60