CIBA Vision has started offering a new multi-focal contact lens that is designed to keep presbyopes over the age of 40 using contact lenses. The Air Optix Aqua Multifocal is designed to correct problems with vision and comfort that cause many contact users to switch back to glasses in their 40s. The new lens is a silicone hydrogel with three ADD powers to transition through the stages of presbyopia and is approved for wearing either daily or extended up to six nights. Its aspheric back surface is designed for good centration and fit.