O'Meara injured his left ankle during Saturday's 28-point win over Port Adelaide, but at this stage he won't require surgery.
The 32-year-old former Sun and Hawk has played just two finals matches - both losses - across his 206-game career, and he's desperate to taste success at ladder-leading Fremantle.
Dockers coach Justin Longmuir is optimistic O'Meara will be able to prove his fitness in time for finals - but whether he earns senior selection is another question.
"We don't think he'll need surgery, so that's a good result," Longmuir said on Tuesday.
"We're still working through the time frames.
"We're thinking more short, medium term. He's just disappointed because he hasn't had a clear run at it."
O'Meara started the year by producing a strong display for WA in the State of Origin loss to Victoria.
But injuries have restricted him to just six AFL games this season, with a series of facial fractures suffered at training in April the most serious of the lot.
Even if O'Meara recovers from his ankle injury before finals, he faces a fight to win back his spot in a star-studded Fremantle outfit.
"Every time he's sort of got into the team he's happened to get injured, and he just hasn't had a good run at it," Longmuir said.
"We all feel for him, but we know he's a pro, and he'll rehab it and put his hand up at the back-end of the season."
The Dockers are set to welcome back star midfielder Shai Bolton (hand) for Friday night's western derby clash with arch rivals West Coast at Optus Stadium.
The Eagles are confident gun on-baller Harley Reid, who injured his ankle in last week's 24-point loss to Brisbane, will be fit to front up against Fremantle.
West Coast have lost six games in a row, and will be without Liam Baker (suspension).
But last year's wooden spooners have declared they are keen to take Fremantle's scalp - and the Dockers are on alert after producing a "sloppy" win over Port Adelaide last week.
Fremantle were smashed in the centre clearances by the injury-hit Power in the first half before finally finding their groove to eke out victory and go three games clear on top of the ladder.
The Dockers were also poor two weeks earlier in a shock loss to GWS, but Longmuir isn't worried.
"I've always got full faith we can turn it around," Longmuir said.
"I said to the players after the game and even in the review, it's not panic stations by any stretch. It's a pretty easy fix to be honest."
9°C