WILLIAMSBURG, Va. - Nicolette Ringgold woke up one morning and the world had gone blurry.

[Ringgold], now 88, suffers from macular degeneration. One eye was already afflicted when she woke up to find vision gone in her good eye.

The book has lots of tips on stairs, which she calls the most dangerous part of the house. Count steps going up so you will know what you face going down. Mark steps with strips of yellow tape. She has done this outside her home and has talked some shopkeepers into adding tape outside their stores.