| 释义 |
Definition of progressive lens in US English: progressive lensnoun usually progressive lensesAn 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 lensnoun usually progressive lensesAn 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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