Mr Heasman, who studies at the University of Sheffield, said his condition was picked up when he had two seizures when he was two years old.
“I had an MRI scan and that detected I had a brain tumour,” he said. “I had two rounds of chemotherapy – one when I was two and one when I was seven and fortunately they that shrank the tumour.
“My family were a huge support for me then and they are now.”
Futsal – which originated in Uruguay – is a fast-paced five-a-side game played in tight spaces, with a heavier ball.
Fifa estimates it is now played by more than 30 million people worldwide.
Mr Heasman said lots of aspects of his sight had been affected and good communication between players was essential to do well in the game.
He said: “My short-sighted vision isn’t very good. My distance vision isn’t very good either, so if someone was to stand a couple of metres away from me I couldn’t really tell who they are just from looking at them.
“I might go off their voice or their body shape or things that I pick out personally.”
