SIGHT. SIGHT The accomodation _ near vision. The visual accommodation enables to send a clear image to the retina, either in far or near vision. It is done by deformation of the eye lens, elastic lens. The ciliary muscles Muller_Rouget muscle, in yellow, and Brucke muscle, in red contract or relax, generating or not a traction of the zonula or zonule of Zinn, the suspensory ligament of the lens. The eye lens is then flattened or bulged. To switch in near vision, the Muller_Rouget muscle contract