| Characteristic | Number of people in millions |
|---|---|
| - | - |
| - | - |
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Source
Release date
December 2015
Region
United States
Survey time period
12 months ending December 2014 and 2015
Number of respondents
> 110,000
Age group
18 years and older
Special properties
Demographically balanced sample
Supplementary notes
* Number of U.S. residents aged 18 years and older who use the vision correction alternative all or any part of the time. Some people use more than one correction alternative.
The original source does not specify the type of survey.
The original source does not specify the exact publication date.
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