In human anatomy, the iris is the colored, muscular part of the eye surrounding the pupil. The iris is in front of the lens and behind the cornea and is bathed in front and behind by a fluid known as the aqueous humor.
Anatomy of the Eye
Human Eye Anatomy, Structure and function
Human eye, Definition, Anatomy, Diagram, Function, & Facts
Anatomy of the Eye, Kellogg Eye Center
Eye Anatomy, Retina Specialists Orlando
Parts of the eye, Human eye & the colourful world
Anatomy of the eye - Moorfields Eye Hospital
Eye Anatomy: Parts of the Eye and How We See - American Academy of Ophthalmology
What Does the Eye Look Like? – Diagram of the Eye