While these eyes cannot see in as much detail as a human eye, they are very good at detecting movement. Their enhanced visual field and ability to detect movement help insects avoid predators and ...

This method takes advantage of the human visual system's characteristics, particularly the fact that our vision is sharpest in the center of our gaze (the fovea) and less detailed in our ...

Misotten L . Estimation of the ratio of cones to neurons in the fovea of the human retina. Invest Ophthalmol Vis Sci 1974;13:1045–9. Adams CK, Perez JM, Hawthorne MN . Rod and cone densities in ...