Being a macular degeneration sufferer, I have researched the market. The consensus is that prior to diagnosis, there is no eveidence that suppliments delay or prevent the desease.
However, once diagnosed all my informants claim that the correct suppliments are beneficial and, in some cases can lead to delay in degeration and just possibly, an improvement in eyesight.
I am having regular lucentis injections (in one eye) and since switching to Macushield have been able to see that little bit better. What I can't say for sure, is that the Macushield has resulted in this improevement (however small) but I shall certainly continue with this suppliment, just in case.