Corine Remande, 49, told Agence France-Presse that doctors revealed her eyeball had exploded after she was struck.
“It happened so fast, I didn’t feel any pain when I was hit," she said. "I didn’t feel like the ball had struck my eye and then I felt the blood start to pour.
"The scan on Friday confirmed a fracture of the right eye socket and an explosion of the eyeball.”
Golfer Brooks Koepka, who hit the fateful shot, said he is "heartbroken" over the woman's injury.
"I hit the golf ball and it’s upsetting," he said Wednesday. "It really is. Just because I hit a golf ball, someone lost the sight in their eye. If you break it down to the heart of it, it’s not a good feeling."
Remande does not blame Koepka, who, upon hitting the ball, immediately rushed over to see if she was OK, but said she is considering legal action against the European tournament's organizers, claiming they have not contacted her since the incident and did not provide adequate warnings.
The organizers dispute Remande's accusations.
“It is distressing to hear that someone might suffer long-term consequences from a ball strike," a Ryder Cup spokesperson told The Guardian earlier this week.
“We have been in communication with the family involved, starting with the immediate on-course treatment and thereafter to provide support, helping with the logistics of repatriation, including providing a transfer for the family from Paris to Lyon. We will continue to offer support for as long as necessary.
“Ball strikes are an occasional hazard for spectators but this kind of incident is extremely rare. We can confirm that 'fore' was shouted several times but also appreciate how hard it can be to know when and where every ball is struck if you are in the crowd."