Forgot to mention earlier - sorry to keep bombarding you with info - but if you have bleeds in your eye, although they're scary they're not permanent, and the black/brown "spider's web" you see will fade after a few weeks and eventually disappear completely. The laser will prevent this from recurring, and in combination with all the measures described in the thread, can make a real difference to your long-term prognosis. The progress is slow, but definite!
I nearly lost my sight too in 2003 because of all this, but was brought back from the brink and can now read the penultimate line on the optician's letters board with ease (and my normal glasses!).