Yay, he's fine!
Went to the vet this morning, cost £32 incl a prescription for fucithalmic stuff:/
He opened his eye. dropped in the "disclosing" stuff and I pulled out what looked like one of his sister's hairs!
The "glassy" eye has gone straight away and it doesn't look infected at all!
Looks like it was just the hair, but I'm gonna use some chloramphenicol ointment 1% that we've got (I rang and checked, vet said that's fine) so that'll save me the price of the prescription, leaving me to pay £23 for the consultation. Oh well, I'm glad that I've had a vet tell me that he's definitely not gona go blind, that's worth every penny for me