Keratitis
| Type | Characteristic features | Therapy |
|---|---|---|
| Bacterial keratitis | • Most common form of keratitis • ↑ Risk with wearing contact lenses • Purulent discharge and/or hypopyon • Round corneal infiltrate or ulcer |
• Topical broad-spectrum antibiotics (e.g., ciprofloxacin) |
| Herpes zoster keratitis | • ↓ Corneal sensation • Punctate lesions on the corneal surface (early disease) • Vesicular eruption on forehead, bridge, and tip of the nose |
• Oral acyclovir, valacyclovir, or famciclovir • Topical steroids |
| Herpes simplex keratitis | • Dendritic or geographic corneal ulcer | • Topical trifluridine or ganciclovir |
| Acanthamoeba keratitis | • ↑ Risk with wearing contact lenses • Corneal ring infiltrate |
• Topical antiseptic (e.g., chlorhexidine) with propamidine |