Get Virtual Care
For Businesses
About Us
A member asked:
What does iris do?
A doctor has provided 1 answer
Light control: The iris, a circular (donut shaped) muscular ring of tissue in the front of the eye, opens and closes in response to the degree of outside light. It also functions as a portion of the focusing capacity of the eye. It's other role is as a part of your allure given its color and structure.
Answered 2/18/2019
5.6k views
Thank
Related Questions
A member asked:
My right iris is higher than the other. Is this normal?
A doctor has provided 1 answer
A member asked:
It's black on the outside of my iris. What does this mean?
A doctor has provided 1 answer
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HIPAASecure
SOC 2 Type 2Certified
JCAHOAccredited
Download HealthTap
Video visit and message your doctor
