Geoffrey Sutcliffe admitted causing the death of Lucille Abraham, 92.
When applying to renew his driving licence, a court heard, Sutcliffe said he met the "required eyesight standard" and did not need glasses to drive.
He was sentenced to eight months in prison, suspended for two years.
Sutcliffe hit Ms Abraham, from Baildon, at the junction of Godwin Street and Kirkgate, in Bradford, last October.
During an eye test the previous month, Prosecutor Michael Smith said, Sutcliffe told the optometrist he was not a driver.
Had he done so, Mr Smith said, she would have said that his eyesight had failed the visual acuity test.
"The defendant suffers from cataracts in both eyes and it seems that the medical opinion here is that he should not undergo an operation on his right eye because effectively that's the only eye that can see," said Mr Smith.
Barrister Ken Green, for Sutcliffe, said he had been driving for over 60 years without any previous offending and his client intended never to drive again and had surrendered his licence.
"He will never forget that day and I am sure he will never forgive himself for that error that he made," said Mr Green.
Passing sentence, Judge Colin Burn said "It is obvious that you should not, with the benefit of hindsight, have been driving at all on that day.
"Your eyesight wasn't up to it as a matter of objective fact."
He added: "The misrepresentation you made about your eyesight was a contributory cause of this collision because you shouldn't have been driving at all."

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Marler apologised to Lee, who is from a Traveller background, at half-time during England's Six Nations win.
Traveller campaigner Shay Clipson said Marler should be banned.
"It's not just in sport, I think it's in every aspect of life where people get so PC and just make massive issues about things," said coach Gatland.
"It was just one of those things, a little bit of banter. We've accepted that and we've accepted his apology. Just move on.
"Fifteen or 20 years ago, those things were sorted out with fists and stuff."
The comment by Marler, 25, is under investigation by Six Nations officials.
Clipson, the founder of the National Alliance of Gypsy, Traveller and Roma Women, told BBC Radio 5 live that the Harlequins prop "cannot make mistakes like that and expect to just say sorry and walk away".
She added that the public had to imagine what the reaction would have been had a black or Asian player been subject to that sort of derogatory remark.
Marler has been cited for a separate incident of foul play involving another Wales prop, Rob Evans.
A previous Welsh Rugby Union statement said: "We're disappointed by the comment made and pleased Joe Marler apologised."
On Monday, assistant coach Rob Howley commented: "As players and coaches, there's banter in the game, but I think there's no place for that."
Marler's comment was heard by television viewers after being picked up on referee Craig Joubert's microphone.
"In modern sport, players have got to be aware that there are microphones everywhere and you have to act accordingly," said Gatland.
An 81-year-old driver whose poor eyesight meant he should not be on the road has been given a suspended jail sentence after he hit and killed a woman.
[NEXT_CONCEPT]
Warren Gatland says the "Gypsy boy" comment aimed at Samson Lee by Joe Marler was "banter" and insists Wales have no issue with the England prop.