.....Flashwc, I never though of agoraphobia, which is a pretty good idea of it's meaning, my only thought is that "not accustomed to this light" would indicate that this is not a life he's led, and the same with "shoes are not accustomed to this hard concrete" which is just as evident as the eyes, but I can see agoraphobia, I don't think he's (the singer/character) is "completely" isolated, as he is talking to someone, and the person shows concern or curiousity for at least asking him how he is and such, anyhow, that's that....
.....Flashwc, I never though of agoraphobia, which is a pretty good idea of it's meaning, my only thought is that "not accustomed to this light" would indicate that this is not a life he's led, and the same with "shoes are not accustomed to this hard concrete" which is just as evident as the eyes, but I can see agoraphobia, I don't think he's (the singer/character) is "completely" isolated, as he is talking to someone, and the person shows concern or curiousity for at least asking him how he is and such, anyhow, that's that....