Nine out of 10 middle-aged people in Korea are experiencing discomfort without a separate vision correction despite ...

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A bifocal reflectarray antenna is proposed for mechanically beam scanning applications at Ka-band. Unlike the conventional bifocal method based on the average phase distributions of the bi-focus, an ...

This segment is sponsored by Johnson & Johnson.In a breakthough in vision technology, there is now a first-of-its kind, daily ...

If you need multifocal lenses, options like bifocals or progressive lenses are available. Understanding the lens coatings is also important.

Brain-computer interface (BCI) based on steady- state visual evoked potentials (SSVEP) is a popular paradigm for its simplicity and high information transfer rate (ITR). Accurate and fast SSVEP ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Metal hinged case with black textured ...

Trifocal intraocular lenses versus bifocal intraocular lenses after cataract extraction among participants with presbyopia. Cochrane Database of Systematic Reviews 2023, Issue 1.