Next time you're forced to take a vision exam at the DMV, take a moment to appreciate the complex math that went into the eye chart. What seems like a fairly straightforward way to assess eyesight is ...

If we read for both enjoyment and edification, a combination which seems rare these days, then Bloomsbury Publishing’s “Object Lessons” series, edited by Christopher Shaberg and Ian Bogost, is a ...

Struggling to read more than six lines on an eye chart with fading letters may serve as a visual “yellow light” for older adults—raising red flags that routine exams sometimes fail to detect. A new ...

What does 20/20 vision mean? When you visit your doctor or an eye care professional, you may be asked to read an eye chart. You may be told you have normal 20/20 vision. What does that really mean? An ...

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 ...

Most of us think of vision in simple terms. Either you can see clearly, or you need glasses. But there is a second, less talked about layer to how our eyes work, and it has nothing to do with clarity.