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 ...

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 ...

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 ...

Cornea Tough, transparent covering over the front part of the eye. Convex in shape. Refracts light as it enters the eye (by a fixed amount). Iris Coloured part of the eye that contains muscles.

An international study led by the University of Oulu and Oulu University Hospital has identified six genetic regions ...

The expert added: "Many of these symptoms can resemble harmless conditions, which is why they can be easily dismissed. However, if something seems off or continues longer than you’d expect, it's ...

We present a case of unilateral, secondary open-angle glaucoma due to an underlying diffuse iris melanoma. The patient was referred by his ophthalmologist with uncontrolled, elevated intraocular ...

They scatter light so that more blue light reflects back out. Eye color depends on the iris, the colored part of the eye.