![]() Eye contact has been a central part of human interaction for a long time, so it’s no surprise that a change in emotion could cause the pupil to dilate. Dilated pupils can be anywhere between 4.0 to 8.0 mm, which means they can double in size!ĭo your pupils dilate when you look at someone you are attracted to? Pupil size can decrease in size with age, but generally, a normal pupil can range in size from 2.0 to 4.0 millimetres (mm). When it is bright, they will reduce in size to limit the amount of light that enters your eye, and in low-light situations, the pupil will increase or ‘dilate’ to allow more light in. The pupils control how much light enters the eyes and can get bigger or smaller depending on how much light is around. Our pupils are the dark circles in the middle of the eyes and are controlled by the muscles in the coloured section of the eye (the iris) which is managed by the branches of the autonomic nervous system. What are pupils and why do they change in size? But is this true? The experts at Lenstore have outlined all the reasons why our pupils might change in size and the potential meanings behind this uncontrollable reflex. You might have even heard that pupil dilation can signify that someone is attracted to you. Ever wondered if you can tell what someone is thinking simply by looking into their eyes? Research has shown that our emotions play a part in pupil dilation and constriction, a completely involuntary action controlled by the autonomic nervous system.
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