The Zeiss OPMI Pentero microscope is employed during neurosurgery at the University of Alberta Hospital.

Photograph by: Pat Marston, edmontonjournal.com

Watch video of an aneurysm in the brain of David Corneau and then the same area after surgery with the help of state-of-the-art illumination technique known as fluorescence angiography. The first video section, recorded on the University of Alberta Hospital's $380,000 Zeiss OPMI Pentero microscope, shows the blistery, cherry-like aneurysm adjacent to the normal, healthy blood vessels in Corneau's brain. The second video section, recorded on the microscope, begins in darkness as Dr. Max Findlay switches over to infrared light. A fluorescent dye is injected into Corneau and makes its way to the brain within seconds, causing the blood vessels to light up like neon. This allows Findlay to immediately see if the surgery has been successful.