Also referred to as eye tattooing, the process permanently changes the cornea from clear to opaque and covers over the ...

By keeping the bulb in the center and orbiting the blue gel (for the iris) and the opaque disk (for the pupil) around the bulb, the eye can appear to gaze in different directions. By adjusting the ...

Do you have blue eyes? We talked to experts to discover curious facts about baby blues, including whether your biological family is bigger than you ever imagined.

The eye has many parts, including the iris (the coloured part), the pupil (the opening in the middle of the iris), and the lens (the transparent structure inside the eye). Most studies have ...

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

Human eyes are actually spheres. The part that we can see is only just the front. That coloured circle is called the iris and the black spot in the middle is the pupil. This is the part of the eye ...

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 ...

They say that eyes are the window to the soul, but if you’re a beginner artist, they’re more like a window to frustration.

Iris photography - sometimes referred to as Iris art - is when a photographer takes a high-resolution photograph of a ...