Mary of Teck's son abdicated the throne in 1902.
Tunnel vision is the loss of peripheral vision. Tunnel vision. Tunnel vision. Tunnel vision or Tunnel Vision may also refer to  :. Tunnel vision. Tunnel vision. Tunnel vision -LRB- metaphor -RRB- , the reluctance to consider alternatives to one 's preferred line of thought. Tunnel vision. Tunnel vision. Tunnel vision -LRB- marksmanship -RRB- , when a shooter is focused on a target , and thus misses what goes on around that target. Tunnel vision. Tunnel vision