Bifocals vs. Spectacles — What's the Difference?

Bifocals are eyeglasses with two distinct optical powers. Bifocals are commonly prescribed to people with presbyopia who also require a correction for myopia, hyperopia, and/or astigmatism.

Something that can be seen or viewed, especially something of a remarkable or impressive nature.

Spectacles that have corrective lenses of two different powers; used by people who need both distance and reading glasses.

A public performance or display, especially one on a large or lavish scale.

Eyeglasses whose lenses have two foci, allowing the wearer to see both far and nearby objects clearly. The lenses are partitioned horizontally, the upper and lower parts having different focal lengths.

A regrettable public display, as of bad behavior

A pair of eyeglasses.

Something resembling eyeglasses in shape or suggesting them in function.

Plural of spectacle

A pair of lenses set in a frame worn on the nose and ears in order to correct deficiencies in eyesight or to ornament the face.

(cricket) pair

Optical instrument consisting of a pair of lenses for correcting defective vision