I'm sorry to hear about your husband's difficulties. There are several of us with MMD on this board and we understand his - and your - fears.
Can you remember what caused your husband's overnight vision loss due to MMD? I'm very sorry this happened. Was it due to extensive bleeding in the macula? Did they ever say what led to the sudden bleeding event, if that's what it was?
Regarding your retina doctor request, can you tell us where you are located in California? Not sure from your post if you are still in the Bay Area. It would help you to look for a retina specialist within reasonable driving distance of your home.
Who has done the recent "state of the art tests,and exams"? Was that person a retina specialist?
If your husband does have new blood vessels beginning to grow in his 'good' eye, he may need regular retina exams to assess any changes going forward. It's possible that Avastin or the related anti-VEGF drugs may help him, if he has active bleeding happening right now. It's also possible he may not need injections right now, if active bleeding has stopped and there isn't evidence yet of chronic bleeding problems. The retina specialist can tell you.
There can be other issues than bleeding in MMD which may affect the quality of his vision as well. Some of these are quite subtle. You are doing the right thing by trying to find a doctor who will take seriously the changes he sees now and will try hard to see if the cause can be identified.
Let us know where you are located, and hopefully a MedHelp user will post or send you a private message with some retina specialist suggestions.
Most retinal doctors can take care of this problem. Find a retinal specialist in your area. There are many good retinal specialist in the bay area.
Dr. O.