That coloured circle is called the iris and the black spot in the middle is the pupil. This is the part of the eye that lets the light in. Lights out please! When it’s dark, muscles in the iris ...

Discover 10 fascinating facts about the human eye, from its incredible processing power to unique features, unveiling secrets you probably didn’t know about.

The uvea is made up of a layer of blood vessels, a muscular ring that surrounds your pupil, and the iris, the colored part of your eye. Together, they help your eyes focus so you can clearly see ...

which utilize the unique patterns in the iris of the eye for personal identification. Recent advancements in this field have focused on improving the accuracy and efficiency of iris segmentation ...