Like Skip said, you may just have to wait for the next shed then...
How much does it reduce thief visibility? I know their eyesight isn't well anyways but I always hear ppl worrying about stuck eyecaps like the snake is in a life/death situation.
1.0 Dumeril Boa (Mr. D)
1.0 Red Tail Boa (no name yet)
0.1 Ball Python (Pandora)