How can I help my dad, who is losing his vision from macular degeneration?

A fellow caregiver asked...

Macular degeneration has severely limited my dad's vision. This is so sad and frustrating for him (and for me) because he used to be such an active guy, walking, and golfing and skiing. He's restless and getting depressed. I don't know where to turn to help him, or how to help him help himself. Ideas?