A family is fundraising for life-changing surgery to turn their daughter's frown upside down - as she has a rare condition which means she is unable to SMILE.

Addison Garvey, three, has Moebius syndrome, a neurological disorder which affects the muscles that control facial expression and eye movement.

The syndrome, which affects one in 50,000 live births in the US, also means Addison relies on a ventilator and feeding tube as she has trouble swallowing and breathing.