How We Read

Researchers in the UK have made some interesting observations about what your eyes are doing when you read.  In short, they are not behaving:

The team’s results demonstrated that both eyes lock on to the same letter 53% of the time; for 39% of the time they see different letters with uncrossed eyes; and for 8% of the time the eyes are crossing to focus on different letters.

A follow-up experiment with the eye-tracking equipment showed that we only see one clear image when reading because our brain fuses the different images from our eyes together.

Via Slashdot.