When accepting to trade your eye for her services, she eventually says she won't be able to help you. This is after she leaves you blind in one eye. If you select certain options in the dialogue she gives you something, as you both agreed with a deal and you did your part. The item is a bone amulet (not equipable, but consumable item) eating it however does nothing. Didn't saw any positive results, and the character whose eye was tampered with is still keeping the debuff. Maybe something for later, may be a bug, may be intentional and mean.
