nortonc I'm sorry you've had such a bad time and as tegan suggests, there may be a PALS (patient liaison group) that can help you.
But one point - if you cancel an appointment, you've effectively declined treatment which may be why you then had to wait for another consultation.
I do wonder too, if you've misinterpreted or misunderstood about the injections. My MiL has had several lucentis injections for macular degeneration, and was told they cost £7K a pop, so the consultant won't have suggested them (nor will the NHS allow it) unless there's some sort of benefit to you.
It may be that the benefit is not that your vision will be improved, but that further episodes will be prevented.
Finally, like you MiL was terrified of the injections, but as someone else has said, your eye is anaesthetised first and you don't feel the injection at all.
I do hope you get it sorted out, (I know from personal experience how worrying it is when there's something wrong with an eye) and I do think you should have been seen more quickly in the first instance, but I would concentrate on getting the right thing done now, and getting g a clear understanding of what is going on, rather than getting involved in a complaint about what should have happened in the past.