Treatment

In case of bacterial ulcers:

Ciprofloxacin 0.3% ophthalmic drops, instill 1–2drops 1–2hourly for 3days then reduce to 3–4hourly.
OR
Ofloxacin 0.3%, ophthalmic drops, instill 1 drop 1–2hourly for 3days then reduce to 3–4hourly.

In case of fungal ulcers:
Natamycin 5%, ophthalmic drops, instill 1 drop 1–2hourly for 3–4days . Then reduce to 1 drop 3-4hourly. Continue for 14–21days until resolution of infection
OR
Econazole 2%, ophthalmic drops, instill 1 drop 1–2hourly for 3–4days . Then reduce to 1 drop 3–4hourly. Continue for 14–21days until resolution of infection
OR
Chlorhexidine 0.2%, ophthalmic drops, instill 1 drop 1–2hourly for 3–4days . Then reduce to 1 drop 3–4hourly. Continue for 14–21days until resolution of infection
In case of viral ulcers:
C: acyclovir 3% eye ointment 5hourly a day until there is no corneal stain, then continue with treatment 8hourly a day for a maximum of 10–14days

Treat the underlying cause cause.