She's only a teenager, but Charlotte Brown has a lot of determination. Thanks to her dedication she cleared 3.5m and was joined on the podium by her guide dog Vador. The contest took place in Austin, Texas, during a high school championship.

Brown developed cataracts at 16 weeks and had artificial lenses inserted, but her vision began to worsen aged 11 and she is now blind with only a "jigsaw puzzle" of light and dark shades.

"This story really wasn't about me," said the 17-year-old.

"It was about everybody that struggles with something."