Fifty-year-old Elgin High School teacher stabbed multiple times by a student has been released from the hospital, officials revealed.

Carolyn Gilbert, a family and consumer sciences teacher of Bloomingdale suffered multiple non-life-threatening wounds in the neck and once near the eye when stabbed by a 16-year-old male student Friday morning, said Elgin Police Lt. Cecil Smith, according to the Chicago Tribune.

She was initially treated at Sherman Hospital in Elgin but later transferred to the University of Illinois Medical Center in Chicago, from where she was released Sunday. She lost vision in one eye because of the attack.

“We’re ensure right now if the (blindness) is temporary or permanent,” Elgin Area School District U-46’s Chief communications officer Tony Sanders said for the Chicago Daily Herald.

The event happened in a classroom about 11 a.m., 15 minutes after students had been dismissed on the last day of final exams. There were no witnesses, but another teacher intervened and held the student until police arrived, officials said, according to the Chicago Tribune.

Officials at Elgin-based Unit School District 46 are investigating how it was possible for the student to enter the school with a weapon as students are randomly checked for weapons with a metal-detector wand. They will review security measures after the peculiar event happened Friday.

As for the boy, he has been charged with aggravated battery with a weapon and aggravated battery to a person known to be a teacher and is currently held at the Cook County Juvenile Temporary Detention Center in Chicago. A Hearing is scheduled for him today. He has been suspended from the school, pending an expulsion hearing with the school board.

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