Imagine waking up one morning and not being able to see? That was the terrifying reality for Zoe Hartman."One day I woke up and I couldn't see and that was that." said Hartman, "I had a brain tumor that pressed against my optic nerves and caused me to go blind. I have only been blind for about 5 years, I was 22 years old at the time."This was life changing for Zoe, as she was originally studying film and looking forward to a career in television."I'm fully blind in my right eye and partial vision in my left eye - so I don't see depth perception or peripheral - so most things are blurry and I don't see details very well," said Hartman.But then Zoe discovered Court 16 Tennis in Brooklyn, New York.Court 16...