There is no such thing as a senior visa, but it is possible for visa applicants over the age of 80 (and under the age of 13) to obtain their visa without having to appear in person for an interview. This policy is referred to as the Personal Appearance Waiver. For more information, check the website of the US consulate where your mother will be applying for her visa.
Edward Weiner
Attorney at Law
E-mail: E.Weiner@immigration-aux-usa.com
Internet Site:
http://www.immigration-aux-usa.com/