This week Dr Sadri is joined by Ram Rao, CEO of LensGen, who developed a curvature changing fluid lens to correct presbyopia. Ram tells his story from the early beginning while collaborating with the late, great Roger Steinert, MD and realizing that they had to go back to the drawing board to reinvent the technology.  Rather than throw in the towel after hearing no repetitively from investors, Ram persevered at all costs, subsequently raised $42M to date and emerged with a breakthrough technology to treat cataracts and presbyopia. Listen in for pearls of entrepreneurial wisdom and understand why Ram never took no for an answer.