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[[Image:Glasses.jpg|thumb|right|A 'bifocal visual aid']] |
[[Image:Glasses.jpg|thumb|right|A 'bifocal visual aid']] |
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A '''bifocal visual aid''' is a [[medical]] instrument that improves sight. |
A '''bifocal visual aid''' is a [[medical]] instrument that improves sight. |
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Revision as of 18:27, 8 August 2008
Notice
A bifocal visual aid is a medical instrument that improves sight.
In 2368, several artifacts were recovered from a cavern underneath the Earth city of San Francisco. Among them was a pair of glasses which lieutenant commander Data described as a 'bifocal visual aid'. (TNG: "Time's Arrow")
See also
- Glasses