The chart priced at $2,200 has a metal lamp visor and a linen scroll with letters of different sizes. There doesn’t seem to be any type of antique that isn’t sold at auctions, flea markets or shops.

Impaired vision and blindness are common. About 3.4 million people in the US are blind or visually impaired. Vision is usually measured by visual acuity charts, and normal vision is expressed as 20/20 ...

There doesn’t seem to be any type of antique that isn’t sold at auctions, flea markets or shops. We were surprised years ago at a flea market when a dealer was offering a wooden artificial leg. It was ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. An inscription reads “SEITZ TEST ...

In a somewhat paradoxical twist, a few extra minutes of screen time can now actually help, rather than hurt, your eye health. That eye-catching claim has become a reality courtesy of the FDA, which ...