She was on the footbridge to Revenue Tower broadcasting the events live on social media when she got hurt.
Reports from the scene suggest she was struck by either a rubber bullet or bean-bag round fired by the police.
She yelled out “First-aid! First-aid!” as she fell to the ground. Volunteer paramedics quickly helped bandage her wound before an ambulance arrived shortly after 5pm.
She told the ambulancemen that her eye hurt a lot as she was rushed to hospital.
The journalist reportedly works for an Indonesian-language publication based in Hong Kong.