[That doesn't necessarily narrow it down. Castiel's siblings can also burn a human's eyes out with their true form, but even so, he has a feeling he's found the person with his memories. In the events leading up to that gap in his memories, he'd burned out a woman's eyes, a seer who had been too intent on calling him to her sight.]
Video
Yes, among other things.
[He inclines his head at her.]
We would be better off discussing this in person.