Main Model
Lens : Lens
The lens is posterior to the iris and anterior to the vitreous humor of the vitreous body. It is
a transparent, biconvex structure enclosed in a capsule. The
highly elastic capsule of the lens is anchored by zonular
fibers (collectively constituting the suspensory ligament
of the lens) to the encircling ciliary processes. Although
most refraction is produced by the cornea, the convexity of the lens, particularly its anterior surface, constantly varies to
fine-tune the focus of near or distant objects on the retina. The isolated unattached lens assumes a nearly
spherical shape. In other words, in the absence of external attachment and stretching, it becomes nearly round.