Whether we’re staring at our phones, the page of a book, or the person across the table, the objects of our focus never stand in isolation; there are always other objects or people in our field of ...

Scientists have discovered that turtles possess advanced visual processing abilities once thought to be unique to mammals.

In the specialized fields of ophthalmologyand optometry, doctors measure sight by having you focus on a central point while keeping your head still. You’ll also be able to see above and below the ...