The 86-year-old was left battered and bruised after he was confronted by an unknown man and punched in the face as he investigated a noise outside on June 7.

The man then ran away, and the unprovoked attack left Mr Louttit in Wagga Base Hospital for four days, where he was monitored for a potential bleed on the brain.

Speaking to The Daily Advertiser at the weekend, almost a month after the attack, Mr Louttit said it had been hard to settle back into life at the home he shares with his wife, Robyn.

"I get up, and I don't want to do anything," he said.

"Why it ever happened, I have no idea. We both can't understand why. I have slow responses to things now.

"I have another scan in two or three weeks to check on the bleed. My second one in the hospital showed the bleed was controlled, but they want to check it again."

Mrs Louttit said it has been difficult for both of them knowing police have not caught the person responsible. She said there had been obvious changes in her husband since returning home. "He is not himself," Mrs Louttit said. "He is a bit lost and wanders around. We both do, really."

Mr Louttit said while his wife didn't "cop the blow", she's also had to deal with the trauma of the aftermath.

"My flashbacks are all about the bang and crash when Gerry went flying," Mrs Louttit said. "There was a fair bit of blood too. It's a bit hard bouncing back because we know he is out there."

Mr Louttit said before the attack they would have dismissed it if they heard any noises or a dog bark. But now, they wonder what, or who, might be lurking.

The pair have installed better lighting and sensor lights around the house as an added measure of security.

Mr Louttit thanked his wife of 46 years for all her support since the attack.

"She's a bit of everything from secretary to nurse, you name it," he said. "She has been someone to lean on during this time."

The couple said they hoped by speaking about what happened to them again, someone with information might come forward.

"You might not think it is much, but it could be the link the police are looking for," Mr Louttit said.

"This man has not been caught," Mrs Louttit said. "Until police catch this man, it will make it hard for us to sleep, relax or move on."

Last month, police released a description of a man who may be able to assist with inquiries. He was described as Caucasian, aged 40 to 45, with a slim build, medium-length scruffy hair and a beard. At the time, he was wearing a denim jacket, black pants and joggers.