Blindness from a Nereid's poison

[Draevis Gorn]

Simple question with a hopefully simple answer. Is the blindness caused by a Nereid's poison permanent, or does it wear off when the poison ends?

[avr]

As listed it isn't clear, but without a listed duration it's probably permanent. Hopefully by the time you're fighting CR 10 monsters you'll have a means of removing blindness.

[Firebug]

Probably permanent.

Compare to the Uraeus(example found by searching for blinded and poison): Poison (Ex) Bite or breath weapon—contact or injury; save Fort DC 15; frequency 1/round for 2 rounds; initial effect blinded and paralyzed for 1 round; secondary effect blinded for 2d4 rounds; cure 2 consecutive saves.