Their career highlight was a bronze medal at the 1985 World Figure Skating Championships, after which Matousek retired from the sport.
Eisler competed with Karen Westby in 1986 and won a bronze medal at the Canadian Figure Skating Championships, missing out on the World team by one spot.
They became Canadian champions in 1989 and went into the World Figure Skating Championships in Paris with high hopes of a medal in a weak and wide open field, but placed a disappointing seventh after two subpar, error-filled performances.
They qualified for the 1990 World Figure Skating Championships by one judge over fourth-place finishers Michelle Menzies and Kevin Wheeler.
With modest expectations, a clean performance in the short program at the 1990 World Figure Skating Championships in Halifax put them in fourth place.
They handily won the short program, but the inspired free program of Natalia Mishkutionok and Artur Dmitriev to Franz Liszt's Liebesträume (Dream of Love), combined with a costly singled double axel by Eisler, garnered a silver medal on a 7-2 judges split.
After a spectacular long program at the 1992 Canadian Figure Skating Championships, Brasseur and Eisler competed in the 1992 Winter Olympics in Albertville, France.
At the 1994 Winter Olympics in Lillehammer, Norway, they made a strong bid for gold with clean short and long programs, but were barely able to fend off the young Russian team of Evgenia Shishkova and Vadim Naumov for the bronze medal, gaining it on a 5–4 split.
Brasseur and Eisler competed injured at the 1994 World Figure Skating Championships in Chiba, Japan and earned a silver medal.
Eisler is director of skating operations at the L.A. Kings Valley Ice Center in Panorama City, Los Angeles.