AN inspirational 16-year-old girl who was told by doctors that she would never walk completed a 10k during Sunday's English Half Marathon – despite pulling a muscle one mile in.

Robyn Harrison, from Cinnamon Brow, was diagnosed with ocular motor apraxia when she was younger.

The condition affects her eye movements, depth perception and cognitive functions but Robyn has continued to defy the odds.

The Warrington Collegiate student, who has no 3D vision and problems with balance, also has a number of other rare conditions, most of which have been impossible to diagnose.

Sunday's remarkable feat comes after she completed the one-mile challenge and 5k at the event in the last two years.

Robyn was supported throughout the race by dad Lee, Ian Pickett, Andrew Holden and Steven Price.

Proud dad Lee, 45, who retired from the police force two months ago, said: "It was difficult as she pulled a muscle in her right leg one mile in but she still pushed on.

"She got upset but she told us she wanted to carry on and never complained.

"She has no 3D vision and no balance but she has been training really hard and keeps on surprising us.

"Robyn loves the fact that she achieved something on Sunday."

Robyn efforts raised £1,800 for Stick 'n' Step charity, which provides conductive education sessions for youngsters.

Donations from as far as North and South America ensured last year's £1,500 total was beaten.

Despite being told that she wouldn't walk by specialists, Robyn and her family refused to accept it and formed a relationship with the charity shortly after at the age of four.

Lee added: "We couldn't accept this so searched and searched and eventually Stick 'n' Step was suggested to us, this was the start of who she is today.

"Robyn remains with them today and goes twice a week for help.

"She doesn't moan, complain or make excuses for her disabilities – she does the best with what she has been given.

"We would like to thank everyone for their support."