The eye chart you’ve known for your whole life is a lie. Because the letters you read off of it don’t actually make up a whole alphabet. While you’ve probably never noticed it from the optometrist’s ...

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.

Caring for your eyes and vision are important parts of a healthy lifestyle. Vision screening is a simple test of your vision that can detect problems early. An eye exam is a detailed check of your ...

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 ...

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 ...

A routine (or comprehensive) exam uses a wide range of tests and procedures to evaluate your vision and the health of your eyes. Diagnostic tests are usually performed by a technician. These test ...

Diagnosing dry eye involves a comprehensive eye exam, including a detailed medical history and specific tests to measure tear production and quality. Common diagnostic tests include the Schirmer test, ...

Diabetes is a health condition that can affect many parts of the body, including the eyes. Routine eye exams can help identify the early stages of eye problems and protect a person’s vision. As such, ...

Many people only think about their eyes when something feels wrong. Blurred vision, headaches, or eye strain often become the trigger for booking an appointment. However, eye health works quietly in ...