Two schoolgirls have been found guilty of hiding a pair of scissors that were used by another pupil to stab a girl in the eye during a lunch break.
The girls, aged 14 and 15, were convicted at Guildford Crown Court of perverting the course of justice.
Their co-defendant, who was 14 when the attack happened at a Surrey secondary school last November, was found guilty of wounding with intent on Friday.
All three will now be sentenced on a date to be set in October.
None of the girls, nor the school involved, can be named for legal reasons.
The 15-year-old victim was left in a pool of blood after being stabbed in the eye, head and back.
Her attacker and the girls who hid the scissors were bailed pending their sentencing, with Judge John Crocker warning them that "all options remain open".
On Friday, the judge told the girl who carried out the attack to "be under no illusion" that a custodial term was likely.
All three had denied the charges against them.
Det Con Nick Beer, of Surrey Police, said: "We are pleased these offenders have been found guilty of this serious offence and that all have been brought to justice.
"We would like to commend the victim and all the witnesses in this trial for their bravery in often difficult and stressful circumstances."
The victim was lucky not to lose her sight and is still recovering from the effects of the attack.
It happened in the school dinner queue when she decided to "stand up for myself for once" after being pigeon-holed and bullied because of the music she listened to and the clothes she wore.
Prosecutors told the jury the three girls were making fun of the victim's long hair and had been asking around for a pair of scissors to cut some of it off.
She said she called her attacker a name, prompting the assault with the scissors which punctured her eyelid.
The victim denied suggestions she began the fight by racially abusing the main defendant or making aggressive moves.