bifocal spectacles

They could see his bifocal spectacles reflecting the marmalade-coloured light.

Benjamin Franklin makes the first known specific reference (in a letter) to the wearing of bifocal spectacles.

The aphakic eye is unable to change its focus, so bifocal spectacles are required even for those with contact lenses.

Peering over the tops of bifocal spectacles, the stoop-shouldered professor recognized the commissioner and nodded affably; then resumed his lecture.

Benjamin Franklin invents bifocal spectacles.

If name badges are worn, nurses need to remember that people who wear bifocal spectacles have difficulty in reading at that level, and any cues regarding inadequate vision should be noted.

He was toying with the idea of bifocal spectacles on the eve of his appointment as Ambassador to France, and the future held a key role for him in the drafting of the American Constitution.

The lens, which is being tested in human patients, is one of many attempts by companies to develop "multifocal" lenses that are analogous to bifocal spectacles but do not have the visible dividing lines most such eyeglasses have.

Franklin had been and still was highly esteemed in France, and Radcliffe had mixed feelings on observing that his father's portrait, usually with fur hat and bifocal spectacles (his own invention), appeared on all manner of objects.

Barrett had once thought, and was now reminded, that Abe Zelkin's head had the appearance of a small, happy pumpkin, if the pumpkin were adorned with an unruly sprout of black hair and a tiny egg of a nose upon which were perched oversized black-rimmed bifocal spectacles.

Dr. Herman Eliot was a thin man, no more than thirty-five years old, with bifocal spectacles and long hair that curled at his neck; it was cut off short in front and at the sides so that it wouldn't get in his eyes, and it was uncombed: a thoroughly careless appearance.