Detectives from the Armed Crime Squad returned to the scene of Saturday’s attempted murder on Thursday.

They conducted a line search with SES volunteers near Burgoigee Creek in a bid to unearth further evidence.

Kelvin Tennant, 72, had an estimated four to six rounds fired at him, likely from a handgun, on a bike path next to the Great Alpine Road.

The shooter appeared to be waiting for him in a dark car near the rail trail before unleashing a volley of shots.

Mr Tennant’s son, Nick, said his memories of the incident were slowly coming back to him as he recovered in hospital.

“The police have got some CCTV of dad riding his bike,” he said.

“I suppose they will pore over that.

“Whether it amounts to anything, I don’t know.”

Bullet fragments had been stuck in the 72-year-old's eye and were successfully removed during surgery on Tuesday. 

Nick said there had been fears his father would lose his sight.

“He had the surgery to get the shrapnel out and they have to monitor a couple of things,” he said.

“They’re pretty confident it should heal itself.

“He should be OK.”

Mr Tennant, a keen rider, was hit in the head and chest by multiple bullets.

Investigators are treating it as a random, unprovoked attack.

He has started to remember details about the shooter, including what he was wearing. 

Nick said tracking down the shooter was important to the family. 

“We need to get this guy off the streets so he can't do it again,” he said. 

“He's clearly got some issues. We need to make sure this doesn't happen again to someone. 

“We're in Australia. 

“You should be able to ride your bike, whatever age you are, without any worries.”

Nick said his father's recovery was the most important thing at this stage. 

“Who knows if he'll remember enough to create a comprehensive view of things,” he said. 

“But it's certainly getting better. 

“We're not pushing that, it's more about him recovering.

“It's only early days but hopefully the police can find out what's happened. 

“There's certainly been no disagreement with anyone up there or anything like that. 

“There's nothing we can pinpoint as to why it's happened.”

Anyone with information should call Crime Stoppers.