the eye muscles, the nerves, blood supply and lachrymal system, whereas the "Ocular Components" section includes the cornea, anterior chamber, iris, ciliary body, lens, and four chapters on retina.

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 ...

Medically reviewed by Christine L. Larsen, MD Medications, trauma, and medical conditions can lead to abnormally small pupils ...

MIT engineers have made a breakthrough in this area—they’ve developed a method to grow muscle tissue that contracts in ...

The invention of the eye ushered in a more brutal and competitive ... with a sophisticated lens, retina, iris and cornea. Trilobites went down a slightly different route, evolving compound eyes ...

A long anticipated upgrade to the camera equipment was installed on Tuesday, so Iris' viewers will get a new look as she ...