I dunno about that. I think you COULD have Second Sight even if you don't have any sight. It just won't give you as much benefit.
Second Sight grants you the ability to see through illusions, but you can't see in the first place, so that's of no benefit to you. (And the ability doesn't work through InIm. So sorry.) However, perceiving naturally invisible things (like ghosts and regio boundaries) might work. What if those are the only thing you CAN see? I can have a hell of a lot of fun with a necromancer magus who sees dead people and ONLY dead people.