Neurology: I need to touch my eyes?

I was wondering if anyone could enlighten me on this habit I've had for as long as I could remember. Like Taylor Morris, whom for some reason can't touch fleece, I feel that I must touch my eyes or face constantly. I have no idea why I do it, I just do. It's a burden when I want to be professional with people, or enjoy something without my hand creeping toward my face. It's not only a burden but it's unsanitary, but I can't help it one bit. Do I have a mental disorder or a neurological issue? Any ideas?