The iris muscle that dilates the pupil in reduced light conditions; fibers from the muscles stretch from the pupil to the outer boundaries of the iris.

🎲 Try a Random Question  |  Total Questions in Quiz: 240  |  🧠 Study this quiz with Flashcards
This question is part of a full practice quiz:
JCAPHO Certified Ophthalmic Assisting Exam Vocab — practice the complete quiz, review flashcards, or try a random question.

The International Joint Commission on Allied Health Personnel in Ophthalmology (IJCAHPO) is an American nonprofit professional association for Allied Ophthalmic Personnel (AOP).


1. The iris muscle that dilates the pupil in reduced light conditions; fibers from the muscles stretch from the pupil to the outer boundaries of the iris.