From order to wear
Non-adaptation
Optical glossaryFrom order to wear
The inability to adjust to a progressive design. Rare, usually fixable with a different design — and covered under the CLIFF Promise for 30 days.
Most wearers adapt within two weeks
Non-adaptation cover · 30 days
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From the CLIFF Promise terms
In more depth
Most people adapt to progressives within two weeks of steady wear. Non-adaptation is when that does not happen: the soft areas stay distracting, reading stays awkward, or the swim does not fade.
The usual fixes come in order: check the frame adjustment and fitting heights, confirm the prescription, and then, if needed, move to a different design. Non-adaptation to a CLIFF progressive is covered under the CLIFF Promise for 30 days.
Related terms
Peripheral distortionThe soft, swimming zones beside a progressive's corridor — a geometric consequence of continuous power change, present in every progressive ever made. Better designs manage it; none eliminate it.RemakeA lens made again due to error or non-adaptation. The most common causes: fitting height and frame changes after measurement.Progressive lensA lens whose power changes gradually from distance at the top to reading at the bottom, with no visible line.