Kym Owens 'has no memory of the night she was left with critical injuries'.
The 18 year old suffered injuries to her head and face in a mysterious incident in Maynooth last November.
Speaking to The Herald, the father of Kym Owens explained that his daughter has no idea what happened to her that night, and is facing more surgery.
Kym was found on the footpath at the entrance to the Moyglare Abbey estate and was in an induced coma at Connolly Hospital for several weeks.
Her injuries included broken eye sockets, a broken jaw and nose.
Theories including an assault, a slip on ice and being hit by a vehicle have all been investigated.
Gardaí have interviewed almost 300 people but have yet to make any arrests.