"I had a bit of a cry because it's not going to get better. I always had in my mind she was going to get better," Ms Iasona said.
"It was like a weight was lifted and one added at the same time."
While many medical professionals hadn't heard of the condition, it wasn't new to Ms Iasona who had stumbled upon it while researching Debbie's symptoms on the internet.
"They say never to google but I had googled it when she was about two months and saw moebius but then switched it off."
She was thankful that the condition was mild in Debbie. While the facial paralysis makes speaking difficult the tot is picking up words and is the boss of her older brothers who affectionately refer to her as "diva Debbie".
Ms Iasona wants to share Debbie's story to raise awareness of the condition. She only knows of eight other kids in New Zealand with it.
While the past year has been a whirlwind of medical appointments - from paediatricians to speech therapists and fittings for her special boots - it hasn't put Ms Iasona off hospitals. She hopes to train as a nurse if Debbie is able to attend a pre-school.