For Acanthamoeba keratitis, how long may treatment continue after full healing?

For Acanthamoeba keratitis, how long may treatment continue after full healing?

• A. Up to 3 months
• B. 1 week
• C. 6 months
• D. 1 year

Answer: (A)

Continuing therapy after full healing is about eradicating any remaining organisms that can hide as cysts in the cornea and preventing relapse. Acanthamoeba cysts are highly resistant and may persist even when the surface looks healed, so keeping treatment going for a period after healing helps ensure complete clearance and stabilizes the cornea. The usual guidance is to continue for up to three months after healing. Shortening the course (for example, one week) risks recurrence, while extending well beyond three months (six months to a year) isn’t the standard approach unless there are unusual circumstances. Therefore, up to three months is the typical recommended duration after full healing.

Continuing therapy after full healing is about eradicating any remaining organisms that can hide as cysts in the cornea and preventing relapse. Acanthamoeba cysts are highly resistant and may persist even when the surface looks healed, so keeping treatment going for a period after healing helps ensure complete clearance and stabilizes the cornea. The usual guidance is to continue for up to three months after healing. Shortening the course (for example, one week) risks recurrence, while extending well beyond three months (six months to a year) isn’t the standard approach unless there are unusual circumstances. Therefore, up to three months is the typical recommended duration after full healing.