A 16-year-old girl carried out a frenzied bottle attack on another female when violence erupted at a party in Kirkcaldy.
The attacker, who is now aged 17 and cannot be named for legal reasons, appeared for sentencing at Dunfermline Sheriff Court.
The Kirkcaldy teenager previously admitted that on October 28 last year at Links Street, acting under provocation, she assaulted a female by repeatedly striking her on the head and body with a glass bottle to her severe injury, permanent disfigurement and permanent impairment.
Depute fiscal Azrah Yousaf said: “The parties involved were known to each other and it appears they were friends before this.
“An argument started and the accused and others went outside to the street.”
The dispute escalated, bottles were smashed and the accused believed she had been hit by the complainer.
The victim was then struck twice on the head with a bottle and then on the hand, when it smashed, causing serious injury.
She lost consciousness on the way to hospital where it was found a tendon had been severed which required complex surgery.
The court was told the victim will never regain full use of her hand because of nerve damage and has also been left with scars on her wrist and eyelid.
Defence solicitor Danielle Valera said her client had been punched five times by the other girl during the incident.
Sheriff Charles MacNair said: “This was a bad attack involving a weapon.”
He imposed a community payback order with two years supervision and 225 hours of unpaid work.