Definition of progressive lens in US English:

progressive lens

noun

usually progressive lenses

An eyeglass lens having a smooth transition between parts with different focal lengths, correcting for vision at all distances.
Example sentencesExamples
- Trifocals can have visible lines or progressive lenses.
- Bifocals have been on their way out ever since the invention of progressive lenses, which gradually change the visual viewing area for distance and reading.
- Among those given progressive lenses, vision deteriorated at only half the rate of the other kids.
- A small segment with a stronger curve may be placed in the mold to form the segment for bifocals or progressive lenses.

Definition of progressive lens in US English:

progressive lens

noun

usually progressive lenses

An eyeglass lens having a smooth transition between parts with different focal lengths, correcting for vision at all distances.
Example sentencesExamples
- Among those given progressive lenses, vision deteriorated at only half the rate of the other kids.
- Bifocals have been on their way out ever since the invention of progressive lenses, which gradually change the visual viewing area for distance and reading.
- A small segment with a stronger curve may be placed in the mold to form the segment for bifocals or progressive lenses.
- Trifocals can have visible lines or progressive lenses.

词汇	progressive lens
释义	Definition of progressive lens in US English: progressive lens noun usually progressive lenses An eyeglass lens having a smooth transition between parts with different focal lengths, correcting for vision at all distances. Example sentencesExamples Trifocals can have visible lines or progressive lenses. Bifocals have been on their way out ever since the invention of progressive lenses, which gradually change the visual viewing area for distance and reading. Among those given progressive lenses, vision deteriorated at only half the rate of the other kids. A small segment with a stronger curve may be placed in the mold to form the segment for bifocals or progressive lenses. Definition of progressive lens in US English: progressive lens noun usually progressive lenses An eyeglass lens having a smooth transition between parts with different focal lengths, correcting for vision at all distances. Example sentencesExamples Among those given progressive lenses, vision deteriorated at only half the rate of the other kids. Bifocals have been on their way out ever since the invention of progressive lenses, which gradually change the visual viewing area for distance and reading. A small segment with a stronger curve may be placed in the mold to form the segment for bifocals or progressive lenses. Trifocals can have visible lines or progressive lenses.
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