To evaluate the reproducibility of variable corneal compensation (VCC) and the effect of accommodation, cycloplegia, eye selection, focus, and pupil size on this measurement of polarization. The ...

The way the brain regulates pupil size is different from previously thought: fundamentally responsible is the neurotransmitter orexin, as researchers at ETH Zurich have now shown. This discovery could ...

“The effect was so strong, we knew immediately that we were onto something important,” recalls Nikola Grujic, a postdoc in the Neurobehavioural Dynamics Laboratory at ETH Zurich. Through a series of ...

You have probably heard the saying that the eyes are the windows to the soul, but now it turns out that they are also connected to how we breathe. Scientists have long studied the size of our pupils ...

Visual illusions of motion are a major source of interest in the vision research community. Explaining how a still image can produce an illusory perception of motion is important for a more complete ...

When people feel disgust or sadness, their pupils involuntarily widen. Conversely, feelings of anger are associated with a narrowing of the pupils, setting it apart from other negative mental states.

Time takes its toll on the eyes. Now a funky, Hitchcockian video of 64 eyeballs, all rolling and blinking in different directions, is providing a novel visual of one way in which eyes age. A video ...