The prefix "ir-" is connected to which structure of the eye?

The prefix "ir-" is indeed associated with the iris, which is the colored part of the eye surrounding the pupil. The term "iris" derives from the Greek word for rainbow, relating to its various colors. The iris plays a vital role in controlling the size of the pupil and, consequently, the amount of light that enters the eye. Understanding prefixes like "ir-" can help in grasping medical terminology as they often give critical clues about the structure or function being referenced. In this case, "ir-" specifically points to the iris, reinforcing the connection between language elements and anatomical concepts.