Thanks Bill,
I had been thinking of talking to my optician about this.
I've managed to clean up a great deal of the problem.
I took the damaged lens out of the eyepiece and soaked it overnight in WD40!
But the view is still 'fuzzy'. Viewed under a good light I can see that there is still a faint layer of something that needs to be fixed.
I'm thinking a longer soak in WD40 might improve things a bit more.
Cheers
Chris