20-year-old Millie Knight can ski very well - she has won two silver Paralympic medals. Millie skis with a guide because she can't see well - she's only got 5% vision. Fortunately, Millie could ski when she was very young, before she lost her vision. Last year, she couldn't compete because she got an injury, but now she and her guide are training for the Beijing Paralympics. When they ski together, they can communicate with special Bluetooth equipment.
