Stargardt Disease: The tragedy of 3 sisters set to miss seeing their children grow up as rare disease takes vision

The most precious photo this family will ever see: Three sisters who are ALL going blind due to rare genetic disease Sisters Ashlea, Leanne and Carys all diagnosed with Stargardt Disease, which will leave them blind | UPDATED: 06:46 GMT, 2 July 2012 This is the tragic family picture that they will have to remember and cherish for the rest of their lives.