Kovarian
The Eye Patch Lady was a mysterious woman, of whom Amy Pond had recurring visions. She wore an eyepatch or a similar device over her right eye.
The first time Amy saw her was whe she appeared at the little girl's bedroom door at Graystark Hall Children's Home. She appeared through a hatch in the door, which later disappeared. Amy was startled by the woman and asked who she was, but the woman ignored her and said "No, I think she's just dreaming" to someone inside the room. When Amy entered, the room appeared to be empty, with no evidence of the woman or the hatch. (DW: Day of the Moon)
While asleep on a pirate ship, Amy was woken by a noise and saw the woman in a hatch that opened on the hull of the ship. She said, "It's fine. You're doing fine. Just stay calm", and then she vanished instantly, along with the hatch. (DW: The Curse of the Black Spot)
In Doctor Who Advenures (a Doctor Who magazine for children), Amy apparently writes in her TARDIS journal that she dose't kow how to tell even Rory about the lady.
