• Illustration by Jeanne Koelling
    File Size: 86 KB
    Refractive Mgmt/Intervention

    Schematic representation of the Helmholtz theory of accommodation, in which contraction of the ciliary muscle during accommodation (bottom) leads to relaxation of the zonular fibers. The reduced zonular tension allows the elastic capsule of the lens to contract, causing an increase in the anterior and posterior lens curvature.