In her new lithographs, artist Susan York explores achromatopsia, a genetic visual disorder known to most as color blindness. York challenges the viewer to see color in a different way, "As an artist who works primarily in values of grey and black, the experience of people affected by achromatopsia is of great interest to me. What is it like to view the world strictly in black and white?" In addition to her "Achromatopsia" series, York will discuss three new editions which relate to her sculptural work done with graphite. This talk will begin at 2 p.m. in the Tamarind Gallery.