http://www.ball-pythons.net/modules....warticle&id=57 Daniel's great article may help pin down what is going on if you know how many days have passed .
Clearing up
During this stage of the shedding process, the opaqueness of the eyes clears up and the ball python is preparing to shed. The body will clear up slightly but may keep a dull appearance. At this point, it may be hard to recognize that your ball python is in shed. They generally look like they normally do, but slightly darker. I have never taken pictures of this step because it is not drastically different than normal.