I too got fobbed off by GP for months about it and ended up self referring and going private for the initial consult - where she was diagnosed and glasses prescribed. Then he transferred us to the public system. It was a good way to "skip the referral queue" and get seen urgently.
If you are financially in the position to do that it's something I'd seriously comsider if you don't get an urgent appointment (ie in next 2 weeks) , not wanting to frighten you but to preserve eyesight in the remaining eye time is pretty crucial
Perhaps check out these websites if you haven't already, they may be able to offer further ideas / support
Best of luck let us know how you get on