Israel’s Addon Optics has developed a technology platform that integrates an off-the-shelf single-focal lens with a proprietary flexible lens to create a high-quality progressive lens. Using a low-cost machine, it can make affordable multifocal spectacles available to those that need them.
https://www.calcalistech.com/ctech/articles/0,7340,L-3926799,00.html
https://finder.startupnationcentral.org/company_page/addon-optics