Holly and her family have returned from China where the 11-year-old from Denman underwent the first round of a controversial stem cell treatment which will hopefully result in her being able to see.

Her one wish has been to see her mum Kerri's face.

Holly, who was born blind, is believed to be the 20th child to travel overseas for the treatment which has not been approved in Australia.

The treatment, which involves a number of stem cell injections over a four-week period, is achieving results and has an 80 per cent success rate, Mrs Arvidson said.

It is carried out at Hangzhou Hospital.

"It will take up to six months for anything to take effect so it's a waiting game now," Mrs Arvidson said.

"We just have to sit back and hope and pray for the best possible results.

"Holly went through an awful lot over the month we were in China but never once did she complain.

"There were a lot of needles and acupuncture but she knew what it was for and was prepared to go through anything. "She is really quite remarkable and mature for her age."

The Herald first told of Holly's brave plans for a China trek in February.

Mrs Arvidson said Holly was not saying too much about the treatment and was hoping every day that "today is the day".

"The first few days we were home Holly was waking up upset each morning because she was dreaming she could see and then she would wake up and couldn't," she said.

"She is really going through some anxiety."

The Arvidsons hope that over the next six months Holly's vision will progressively start to improve and she will gain some light perception.

"The second treatment should bring sight and a third even better sight. We plan to return to China next year," Mrs Arvidson said.

Medical staff at Hangzhou Hospital treated Holly and her family "wonderfully" Mrs Arvidson said.

"You could never fault them and they went out of their way to help us," she said.