The Portuguese national also slaps her across the face, causing her to howl in pain.
She is heard repeatedly crying and pleading to God for help.
His colleague at the Macclesfield-based Prestbury House Care Home – Piotre Ciecielowski, 26, failed to stop Dias or report his behaviour and branded the victim a “silly b***h”.
The incident in March was captured on secret CCTV cameras installed by the victim’s daughter Lynne Nuttall after she became concerned about her mother’s unexplained injuries.
At Chester Crown Court, Ciecielowski and Dias, both of Macclesfield, admitted ill-treatment while working as a care worker, but avoided jail.
They were sentenced to nine months in prison, suspended for two years, and ordered to complete 250 hours unpaid work.
They must both pay the victim £250 compensation.
Sentencing, Judge Simon Berkson said the defendants’ behaviour had “degraded” the victim and was “cruel and anything but caring”.
The victim’s daughter, Lynne branded the pair “evil and a disgrace” and hit out at the sentence.
She said: “What does that sentence say about how we care for the elderly in our society, when two large men can treat a 95-year-old blind woman like that, but can walk free from court?
“She was walloped out of nowhere and wouldn’t have seen it coming. It breaks my heart.”
“When I looked at the footage I wasn’t expecting to see that. I cried out in horror. I had to stop watching. I couldn’t bear it.
“I have captured just one incident on camera. I fear that the full extent of physical and psychological abuse and harm done to my mother may never be known.
“Only because of my intervention were these men caught on camera and stopped.”
The incident prompted an unannounced inspection by government watchdogs the Care Quality Commission which has downgraded the rating of the care home on West Park Drive to inadequate, the court heard.
Following the case, a spokesperson for the home said: “We were shocked and appalled by the actions of these individuals, whose behaviour went against everything we stand for as an organisation.”