From: A prototype power assist wheelchair that provides for obstacle detection and avoidance for those with visual impairments
Legally Blind
Serious Difficulty Seeing but not legally blind
US Population
Totals
1057389.5
5315541
259994178
Uses Any Kind of Wheelchair (Manual, Electric or Scooter)
101565
279070.5
1668244.5
Percent
9.61
5.25
0.64