Top Ten Facts About Human Eyes
Eyes are organs that detect light, and convert it to electro-chemical impulses in neurons. The eye is not properly a sphere, rather it is a fused two-piece unit. Complex eyes can distinguish shapes and colors. The approximate field of view of a human eye is 95° out, 75° down, 60° in, 60° up. About 12–15° temporal and 1.5° below the horizontal is the optic nerve or blind spot which is roughly 7.5° high and 5.5° wide.