Bit of mineral oil on a q-tip for the eye cap. VERY gently remove it.
As for the rest of the shed, give him a good soak, and you can rub gently around the edges of the stuck on shed with your fingers while you do.
Just dont yank it off

.
Get humidity gauges if you dont have them already... keep your humidity between 50 and 80 percent.
Injecting your f/t prey with water will keep your snake hydrated and help with sheds also.
Hope this helps-
Artemis