Accommodating intraocular lens to restore vision lost by presbyopia

Susana Marcos and Rocío Gutiérrez


    Susana Marcos and Rocío Gutiérrez


    CSIC, Spain


    Presbyopia and cataracts are age-related visual conditions that invariably affect everyone beyond a certain age. Presbyopia occurs after age 45, when the crystalline lens loses elasticity and the capacity to dynamically focus, affecting 1.3 billion worldwide. After 70, the natural lens loses transparency, requiring its replacement by an artificial lens. Every year more than 28 million people undergo cataract surgery. Intraocular Lenses (IOLs) have evolved to eliminate opacification, correct refraction, and provide some functional near vision (multifocal IOLs). However, there is no working solution that provides patients with the dynamic focusing of the young crystalline lens.

    The VioBioLab (Institute of Optics, CSIC) with funding from the European Research Council (ERC Advanced Grant PRESBYOPIA; ERC Proof-of-Concept Grant Light-IOL) has developed and demonstrated experimentally LightLens, a surface reshaping Accommodating Intraocular Lens (AIOL). LightLens is inspired by the natural accommodation mechanism and is enabled by photobonding, a new method to capture the available forces from the ciliary muscle. These developments are called to revolutionize the treatment of presbyopia and cataracts, restoring the accommodating capability of the young eye.