Parents sue medical staff after their daughter's condition wasn't picked up during pregnancy.

The Gold Coast parents of a severely disabled toddler are suing medical professionals who they say failed to identify and alert them to their daughter’s condition during pregnancy.

According to Regan Hooker and Wayne Ball, their daughter Aria’s condition of Aicardi Syndrome should have been detected during their routine 19 week ultrasound. Yet due to what they are claiming is ‘medical negligence’, the parents did not learn of their daughter’s condition until an MRI in June 2014 when Aria was already several months old.

In papers filed in the Brisbane Supreme Court, Hooker and Ball say had they known of their daughter’s condition earlier they would have terminated the pregnancy.

The couple is now seeking $2.5 million in damages.

Aria today. Source: GoFundMe.

Hooker and Ball are claiming sonographer Kim Andrews and specialist radiologist Greg Duncombe of Queensland Maternal Fetal Medicine in Southport, and obstetrician Penelope Isherwood are all at fault for not warning the parents of the condition at their 19-week scan or recommending follow-up ultrasounds.

As Regan and Wayne are New Zealand residents, the parents are ineligible for government assistance. The pair have created a GoFundMe page to raise funds to help cover Aria's medical costs, which include: managing her impaired vision, hearing loss, scoliosis, dislocated hip and developmental delays.

"I would love to be able to stay at home and care for Aria but it's just not possible with so many therapies and treatments to pay for," Hooker writes on the fundraiser page.

"She has always shown us signs of being a fighter, and we also are fighting in her corner for a better quality of life for Aria."

Ball and Hooker. Source: Yahoo News video.

"Aria is now two and a half and is a happy little girl, she is always smiling and giggling and showing signs of being a cheeky little girl. She has a beautiful smile that lights up her whole face and anyone around her."

The couple has raised over $3,000 so far and have a goal of $6,000 in total.

A response to the claim is yet to be filed.