• Entry
  • Reader's guide
  • Entries A-Z
  • Subject index

Visual problems are among the most feared disabilities in the elderly. According to the World Health Organization, more than 161 million people globally were afflicted with visual impairments in 2002. Of these, approximately 37 million were blind. These numbers are expected ...

    • Loading...
    locked icon

    Sign in to access this content

    Get a 30 day FREE TRIAL

    • Watch videos from a variety of sources bringing classroom topics to life
    • Read modern, diverse business cases
    • Explore hundreds of books and reference titles