Neurotrophic Keratopathy after Trigeminal Nerve Block for Treatment of Postherpetic Neuralgia

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	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