Is Pyar Ko Main Kya Naam Du added 20 new photos to the album: Arnav(Barun Sobti) â with . Is Pyar Ko Main Kya Naam Du added 54 new photos to the album: Anjali (Daljit Kaur) â with Jannat Sharmin and Izhan Ahsan. Is Pyar Ko Main Kya Naam Du added 42 new photos to the album: Khushii(Sanaya Irani) â with Nikita Yadav and 2 others.
Iris The circular muscles of the <b>iris</b> expand and contract the pupil. The size of the pupil determines how much light will enter the eye, so the iris effectively controls the amount of light that is passed to the retina. The iris is also responsible for eye color (blue, brown, green, hazel). See the related link below for more information on the iris.
sphincter pupillae, a muscle that contracts the iris, narrowing the diameter of the pupil of the eye. It is composed of circular fibers arranged in a narrow band, about 1 mm wide, surrounding the margin of the pupil toward the posterior surface of the iris. The circular fibers near the free margin of the iris are closely packed.