Sutcliffe, 50, was taken by ambulance from the Berkshire secure hospital to the Eye Unit at Frimley Park Hospital in Surrey with serious injuries to both eyes. It was not known whether he has lost sight in either of his eyes.
Broadmoor confirmed the incident happened shortly after 3pm yesterday in an open ward. A spokeswoman said that Sutcliffe was transferred to Frimley Park and then, later in the evening, taken back to Broadmoor.
"The patient is now back at Broadmoor," a statement from the hospital said.
"We are, after all, a hospital and are equipped to carry out post-operative care in the infirmary."
However, the spokeswoman would not confirm reports that Sutcliffe was stabbed by fellow patient Ian Kay, who was convicted of the murder of the Woolworth's trainee manager John Penfold in 1995.
Mr Penfold, 21, was stabbed through the heart with a kitchen knife in November 1994 at the Woolworth's branch in Teddington, south-west London. At his trial, Kay, now 29, admitted manslaughter on the grounds of diminished responsibility, saying he "could not" resist his violent impulses and was prone to inflicting violence on humans and animals.
Sutcliffe was jailed for 13 killings at the Old Bailey in 1981 where he was ordered to serve a minimum of 30 years.
This is not the first time the Yorkshire Ripper has been attacked while in Broadmoor.
A year ago last month, he was set upon by another fellow patient who tried to garrotte him with a length of flex.Reuse content