Life Sciences

Blood Cells in the Eye

Blood Cells in the Eye shows visitors the blood cells of their own eyes. When the visitor looks into a special cylinder, he sees bright sparkles against a blue background. The sparkles move in the rhythm of the visitor's pulse. These sparkles are the red corpuscles in the blood vessels that bring nourishment to the retina. It's possible to see these blood cells on a foggy day, but the blue light in this exhibit makes them especially easy to see.