The
foveola is located within a region called the
macula, a yellowish, cone photo receptor filled portion of the human
retina. The foveola is approximately 0.35 mm in diameter and lies in the center of the
fovea and contains only
cone cells, and a cone-shaped zone of
Müller cells. In this region the cone receptors are found to be longer, slimmer and more densely packed than anywhere else in the retina, thus allowing that region to have the potential to have the highest visual acuity in the eye.