Thanks for the article Dunk,
Timely, as last week I was referred to an eye specialist, who confirmed my early onset macular degeneration.
Symptoms may include decreased night vision, poor colour sensitivity, inability to discern detail.
As Glen has said, no cure just eat specific things, to slow the onset.
Or take a supplement like Macutec (only available by direct ordering).
I can't see any point in any further equipment upgrades now. (sad pun intended)