Enquanto alguns fãs afirmaram que a alma pode ficar presa, a conclusão comum é evitar a cegueira. Além disso, eles olham para a armadilha, enquanto usavam óculos de proteção no segundo filme.
De ectozone :
Do not look into the trap: It is not stated what exactly would happen if a human were to look into a Ghost Trap, however it is believed by most that the glare could cause eye damage and even blindness.
De gbfans.com :
In Ghostbusters, Ray advises Egon against looking at the trap. In the Braxtan fanfilm, Return of the Ghostbusters, this comment is expanded upon, the characters describing how the soul can be pulled through the eyes into a trap, subsequently being stored like a ghost.
However, as evidenced in the films it is more likely that looking directly into the trap will blind you, not steal your soul. In Ghostbusters it was simply that Egon was not close enough to be blinded by the trap, but was clearly bothered by looking into the Ghost Trap.