A Queens man was struck and killed by a city bus when he stepped out of his car to get some air — and his wife of 30 years witnessed the tragic accident, authorities and family said.

Kenneth Yard, 65, a retired Verizon worker, had gone out to dinner with his wife, Betty Yard, 65, Sunday and started feeling ill around 11:40 p.m. during the drive home, Betty said.

“He kept squeezing his head, his chest, stomach,” said his devastated wife, who added that he pulled over near Rockaway Boulevard and First Street in Meadowmere.

“I was wondering if he was having a heart attack,” said Yard. Kenneth had told her that his vision had become blurry, and he began pacing around.

“I said, ‘Why is he crossing that street for? He knows he can’t cross that busy street,’ ” Yard said.

It was then that the Q113 bus struck him.

“I ran to his rescue, and he was looking up in the sky,” she said.

EMS rushed the father of four to Jamaica Hospital, where he died.