My mother-in-law has eye problems that necessitate extra light. The lights I gave her that she likes the most are a Dorcy Super 1 Watt [small single cr123 she carries everywhere], a ProPoly 4AA Lux [larger, but with a lot of light and good runtime], and a FavorLight 1 Watt Headlamp running on two 3.0 v rcr123 [Tenergy brand from BatteryJunction]. She also uses a drugstore 7 led showerhead type when she needs just a little light, like in church. She uses the headlamp a lot for around the house tasks, which is why we eventually went to rechargables in it. It is the same model as a Nuwai ALX-713 IIRC. It has three levels and a simple interface. I would definately suggest a headlamp for people in this situation, although not all people can seem to get their head around the idea of wearing one.
One good thing to come out of this is that my m-i-l has now "seen the light" and is a budding flashaholic, and my wife is now much more tolerant of my hobby.