Visitor visa is an official document issued by a Canadian visa office that is placed in your passport to show that you have met the requirements for admission to Canada as a temporary resident.
Parents and grandparents of Canadian citizens and permanent residents intending to obtain temporary residence to visit their close relatives may apply for extended visitors’ visas known as Super Visas.
If an applicant is seeking medical treatment in Canada, the applicant should submit proof from the treating physician indicating along with proof of arrangements have been made for the treatment.