"Bright Images, "written by Ken Gaertner, directed by Mark Bloom, set and lighting design by Mark Bloom. Running time: 40 minutes. $15. (world premiere) www.theaterforthenewcity.net or www.dreamupfestival.org 212-254-1109  "Bright Images" is a piercing rendition of a woman going mad and her unexpected salvation.  A brother tries to save his sister Alicia's sight and sanity in rural America.  It's hopeless until a blind woman comes on the scene and what is envisioned in her cloudy landscape softens the searing images that torment Alicia.  An unusual and compelling play. This play is part of the "Dream Up Festival"; a theater festival that takes place at the Theater for the New City (TNC) from August 8 to September 5, 2010.