Human eyes can’t decipher individual pixels from far away—this video shows why. A version of this story appears in the October 2018 issue of National Geographic magazine. Short for “picture ...

If I use 1 arcminute instead, the scale factor is smaller, about 3438. So let’s convert that to inches to see how small a pixel the human eye can resolve at a distance of one foot: 12 inches / 3438 = ...

Eventually, the human eye will reach a limit to how much more detail it can see as it can only discern sharpness to a certain degree. Developing resolution beyond about 576 MegaPixels would not be ...

Eye tracking plays a critical role in the latest virtual and augmented reality headsets and is an important technology in the ...