Although my experience is more with king snakes, the shedding process is basically the same with all snakes. Give the snake a container big enough for him to crawl into filled with moist sphagnum moss.

I leave these little moss hides in 24/7, as they really enjoy them, and there has been no problem with sheds.
If he can hole up in a moist hide the stuck on stuff should come off his eye. Trying to manually remove it might damage his fragile cornea.