NCIt related terms : EYE, LENS; Crystalline Lens; Ocular Lens; Structure of lens of eye (body structure);
NCIt definition : A biconvex transparent structure of the eye through which light is focused on the
retina. The lens sits behind the iris and is supported by the zonule, which connects
it to the ciliary body. The lens is an avascular structure.;
Alternative definition : CDISC: The structure of the eye through which light is focused onto the retina.; NCI-GLOSS: A clear disk that focuses light, as in a camera or microscope. In the eye,
the lens is a clear, curved structure at the front of the eye behind the pupil. It
focuses light rays that enter the eye through the pupil, making an image on the retina
(light-sensitive layers of nerve tissue at the back of the eye).;