All the best.
Good that you have had it seen promptly; it is either an infected scratch on or a poke of the cornea (the eye surface). the blueish gunk on the eye surface is the ulceration, i.e. where the infection sits. What eye drops have you been given?
Eyes are the one issue where treatment and medication is the same as for other species so you do not need to see an exotics vet. Just stay with your current treating vet for now.
Please set a part of your monthly salary aside for your vet fund and always save up for any vet fees, which can quickly run into the hundreds of pounds for a more serious health issue or an operation; often as an emergency.
For UK members, who are used to free human medical care, the cost of running a vet clinic come as a nasty surprise. Unlike what most people assume, salaries are actually much lower than you'd think (especially in view of the long working hours) and do not make the largest budget post. That goes for stocking medication and expensive diagnostic machines.
A guide to vets fees, insurance and payment support.