"The world is a surreal pageant," writes Stephen Kuusisto. "Ahead of me the shapes and colors suggest the sails of Tristan's ship or an elephant's ear floating in air, though in reality it is a middle-aged man in a London Fog rain coat which billows behind him in the April wind."

So begins Kuusisto's memoir, Planet of the Blind, a journey through the kaleidoscope geography of the partially-sighted, where everyday encounters become revelations, struggles, or simple triumphs. Not fully blind, not fully sighted, the author lives in what he describes as "the customs-house of the...