The 2012 London Olympic and two-time world 100m hurdles champion suffered a hamstring strain in early July.

She was forced to pull out of a meet in Lucerne and the prestigious Diamond League events in Monaco and London in July.

The world championships are in Doha from September 28 to October 6.

"Three weeks into a hamstring injury and I'm 10 weeks out of running at the world championships," Pearson told AAP at a function in Wednesday marking one year to the Tokyo Olympics.

"If all goes to plan I should be there (in Doha) fit, fast and healthy."

She is resigned to missing the remainder of the Diamond League schedule.

"I've decided to just take a step back and take the pressure off and just do a couple of smaller meets leading into the worlds," Pearson said

She is looking at European events around August 24, 27 and 30.

Pearson has suffered a wretched run on the fitness front in recent years.

A series of serious wrist, Achilles and hamstring injuries caused her to miss the 2015 world titles and the 2016 Rio Olympics

She was also forced out of her home Commonwealth Games on the Gold Coast last year due to an Achilles issue.

"Having a few injuries in the past helps me to be able to deal better with them. If you get stressed by injuries it doesn't do you any good," Pearson said.

"So I've learnt to be able to control that and to be able to get back."

In between those injury setbacks Pearson won her second world title in 2017 and is aiming to become the first Australian track and field athlete to win three world championships gold medals.

She also has her mind on racing at a third Olympic Games in Tokyo next year after the frustration of missing Rio 2016.

"If I get out in that (Olympic) stadium fit, fast and healthy, who knows what can happen," she said.

Australian Associated Press