Thug Joey Hoban, 24, forced his way in and laid into Paul Kerr with a knuckleduster.
But he came off worse when Mr Kerr, 29, grabbed a knife to defend himself and stabbed his assailant several times — once between the eyes.
The blade severed an optic nerve, causing Hoban to lose the sight in his right eye.
The attack happened in January at Mr Kerr’s home in Blackpool, Lancs. Hoban, of Blackpool, admitted burglary and grievous bodily harm and was jailed for 23 months at Preston Crown Court.
His lawyer Virginia Hayton said he now feared losing the sight in his good eye.
She added: “He was stabbed in the bridge of the nose and the blade of the knife entered the back of his eye and severed an optic nerve.
“A puncture wound damaged his lung. His lung has now collapsed on two occasions. There are concerns he may lose the sight in his other eye.
“He is not the cocksure young man he used to be.”
Hoban, who has a long criminal history, was given an Asbo in 2003 aged 15 and convicted of wounding with intent in 2005.
Judge Andrew Menary said: “Only an immediate prison sentence can be imposed”.
A LONER who made 7/7-type explosives to scare off burglars was jailed for two and a half years yesterday.
Martin Counsell, 52, bought the ingredients on eBay for £20.
Cops evacuated 600 residents after they found four bombs in a garage he rented in Cheltenham, Gloucs.
The explosives were like those in the 2005 London blasts. Counsell wanted to scare not injure raiders, Gloucester Crown Court heard.
He admitted making an explosive substance.