The size change of the pupil depends on the strength of the light coming in. It has the function of controlling the quantity of the light. When you see near things with bright light, the size of pupil will be normal. However, you see things far away, the light quantity is small. At this time, your pupil will dilate.
The function of pupil is to control the number of rays which get into your eyes. If your eyes like windows of your heart, the pupils just like the curtain of your windows. The focal function does not responsible by the pupils but related by the crystalline lens within your eyeball. The size of pupil is changed following the intensity of rays. So please do not mix the two functions together, it is none of the business between pupils and the distance.
Hello there, My name is Aly and I would like to know if you would have any interest to have your website here at firmoo.com promoted as a resource on our blog alychidesign.com ? We are in the midst of updating our broken link resources to include current and up to date resources for our readers. Our resource links are manually approved allowing us to mark a link as a do-follow link as well . If you may be interested please in being included as a resource on our blog, please let me know. Thanks, Aly