Hi,
There are very few problems that will be caused by a retained eyecap that are as serious as someone removing a stuck eyecap that isn't there.
That usually results in a blind snake.
There are a few things people can mistake for a stuck eyecap like scuffed eyecaps from a rough hide, the membrane between the spectacle and the rest of the skin being pulled out during a perfectly full shed, and a dented or creased eyecap caused by low humidity.
That's why it is better to wait for pictures before recommending anything.
Not trying to be a pratt or anything but I have seen too many snakes blinded like this.
Thanks very much for all of your advice. I will spray his viv everyday until he sheds again and keep a look out for mites. Will post pics of him when I pick him up later on
Don't spray his viv everyday unless you have first checked the humidity with a decent unit and know it needs it.
You should be aiming for 50-60% humidity during the normal times raised to 60-70% when the snake starts showing signs of shedding.
Keeping his enclosure too moist can lead to mold and bacteria growth and, if the substrate is too wet, can even start scale rot.
There are a few things that can be done to enclosures to raise humidity so telling us about the setup could help us give more specific ideas.
I'm quoting these just so I can see the pictures as they aren't showing for me for some reason.
del