As marketers, it's our job to create messages that resonate with a wide range of people. However, many businesses fail when it comes to creating content that caters to the vision and hearing impaired communities. It's estimated that 25.5 million adult Americans are visually impaired. And according to the National Institute of Deafness and Other Communication Disorders (NIDCD), about 28.8 million adult Americans are hearing impaired. Combine that with a large aging population and a growing rate of health conditions, and you have a very large percentage of the population that may not be receiving the marketing messages you're putting out.