In 1983, Jane Bernstein had everything she ever wanted: a healthy four-year-old daughter, Charlotte; a happy marriage; a highly praised first novel; and a brand new baby, Rachel. But by the time Rachel was six weeks old, a neuro-ophthalmologist told Jane and her husband that their baby was blind. Although there was some hope that Rachel might gain partial vision as she grew, her condition was one that often resulted in seizure disorders...