GEELONG captain Joel Selwood believes the AFL is doing enough to combat concussion and says leadership on the issue is filtering down to local level.

Technology is rapidly improving to help footballers deal with head knocks as awareness around the deadly neurodegenerative disease, chronic traumatic encephalopathy (CTE), increases.

Former top-flight players Graham 'Polly' Farmer, Danny Frawley and Shane Tuck have all been diagnosed with CTE in post-mortems during the past two years.

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Selwood has suffered his share of head knocks during his illustrious 334-game career, but feels he is getting the best possible care.

"The AFL are doing a great job at trying to get at the forefront," Selwood at the launch of Eyeguide's Baseline Your Brain program.

"They by no means think that they're perfect, but (AFL chief medical officer) Michael Makdissi has been a leader on it for a number of years.

"I have been involved in concussions before, but I've been extremely well looked after by medical teams and that's the level of care we get at an AFL level.

"This technology wasn't around when I started playing and it provides players and parents with clear data and peace of mind.

"I have done my baseline reading for this season and I encourage all senior and junior players to get theirs done as well."

Eyeguide's baseline test is set to be rolled out to more than 30,000 junior and senior locals players this year.

The technology analyses, ranks and scores brain health of a player as they follow a moving object.

The test, which takes about 10 seconds, detected concussions 85 per cent of the time last year.

The initiative is now being used in countries outside of Australia, including the United States, England, South Africa and Japan.