Forget the hands and the hips. It's all in the eyes.
Performance coach and scientist Dr. Sherylle Calder has been hard at work inside the ropes this week at Augusta National, the sight of The Masters Tournament.
Known around the game as 'The Eye Lady,' Calder helps golfers improve putting, one of the most delicate and volatile parts of the game that can make or break winning the coveted Green Jacket.
PHOTOS | Thursday at The Masters
She does this by a software she has developed called 'Eye Gym.' It teaches some of the best golfers in the world to see the shot in front of them and have the right message sent to the brain as to how to hit it.
The result: the perfect shot.
Through her experiences playing international hockey for South Africa, her native country, she discovered that the brain, eyes and body can all be trained.
"If you sync the three together, you can impact performance," Calder said. "I decided I need to research it."
Looking around the putting greens at Augusta, it's easy notice there aren't a lot of females around other than Calder. But, professional South African golfers like Charl Schwartzel, Ernie Ells (before this story cursed him and he putted 7 on the first hole) and Brandon Grace could not see themselves preparing for the biggest major of the year without her guidance.
"She's really good at what she does," Grace said. "She's a little bit more of a perfectionist. So, that really helps, those small things, just tweaking them at the right time, the right place will do the thing."
Her work can't go unnoticed, especially how she has persevered in a sport that has only recently started to really open its doors to women.
But she's confident in herself, so it does not phase her.
"It is tough at times, but I'm an expert at what I do," she said.
"If I'm a guy or a girl, it doesn't really matter, does it?"