Feast your eyes on the iris. Sure, being blessed with a choice eye color is cool. But new research reveals that the eye’s pupil size and iris brightness are the real moneymakers. “Brighter irises and ...

For the first time, researchers have been able to observe how the pupils react during sleep over a period of several hours. A look under the eyelids showed them that more happens in the brain during ...

Amanda Meyer is affiliated with the Australian and New Zealand Association of Clinical Anatomists, the American Association for Anatomy, and the Global Neuroanatomy Network. Monika Zimanyi is ...

Human eye colour is one of the most striking and memorable features, ranging from deep brown to icy blue, rare green, and shifting hazel tones. Behind this diversity lies a fascinating interplay of ...