The gift of eyesight is something many of us take for granted, but slowly, silently, your vision can be lost without any warning signs until it's too late. Glaucoma is an eye disease that gradually steals sight with few if any symptoms, and for African Americans, it is the leading cause of vision loss. Glaucoma can be treated if caught in time, but once vision is lost, restoration is impossible. In this program, we take a look at warning signs and risk factors.