Keep doing the injections; they are the best medically proven way to preserve the vision in that eye.

I just read about a study where they used gene therapy to cause retinal cells to express anti-VEGF (vascular endothelial growth factor) proteins and stop the growth of the abnormal leaky vessels. They have completed human trials for at least one of the studies so it's phase III research and they had good results. The implication is, once the treatment is perfected and approved, a single injection would halt the disease. That's probably still several years away due to the time required to clear regulatory hurdles, so in the meantime, keep getting the injections - better therapies are on the horizon.

Also on the horizon, though probably still 6-10 years away, are retinal stem cell implants to repair the damaged retina. They have also done trial on human patients for this therapy. So there's hope down the road that the disease process can not only be halted, but that visual losses can be restored.