So, a short-sighted spectre - that had potential as a story. Bumping into things, generally making a mess of the whole haunting thing as he learnt the skills of ghosting. I wanted to call him Phil, Phil the Spectre, but then Phil Spector got done for murder and it didn't seem appropriate, so he was renamed Luke. Somewhere along the way his eyesight ceased to be an issue, and he was joined by quite a few more characters, the most notable being Alice.
You can read about them in the Authonomy gold-starred novel, Phasmatis.