As head of the Washington University optical radiology laboratory — where researchers study how to use light to improve diagnosis and treatment of disease — Samuel Achilefu heard from surgeons frustrated by the difficulty of removing every remnant of a patient’s cancerous tumor.

Before surgery, imaging tests involving big, high-tech machines can create detailed pictures of a person’s cancer, Achilefu said, “but when a patient is in the operating room, it’s like walking in the dark.”

http://smileandmobile.com/2015/06/28/nigerian-born-wash-u-scientist-wins-annual-st-louis-award-for-his-cancer-seeing-glasses/

Great landmark..