Brain or eye injuriesĪn eye-related injury and disease can change the way your iris muscles work, which affects pupillary response. Some examples include over-the-counter medications for allergies, coughs, colds, motion sickness and nausea, and prescription medications for anti-seizure, Parkinson’s disease, some antidepressants, as well as Botox and atropine (a pupil-dilating eye drop). Medications can also cause your pupils to dilate and influence their response to light, as certain medicines interfere with communication between your brain and your iris muscles. Illegal drugs, including stimulants (such as cocaine and amphetamines) and psychedelics (such as ecstasy and LSD) will also affect pupil dilation. Recreational drugs such as marijuana can cause your pupils to dilate and slow your eyes’ response to different levels of light. Drugs, medications, and other substancesĬertain substances affect the neurotransmitters in the brain, which can affect pupil dilation. When your attention or focus is heightened, your pupils will dilate to better assess the situation – just like when some animals are threatened and prepared to engage in fight-or-flight mode. Pupillary dilation can reveal some emotions such as arousal, attraction, anger, fear and anxiety. For this reason, you might want to keep an eye out for other signs of interest, rather than purely counting on their dilated pupils.Īre they making eye contact? Are they scrolling through their IG feed? Are they pausing between bites of ravioli to ask you about yourself? You’ll know the signs when you see them. If you find yourself in a candlelit romantic scene, pupils will probably appear bigger. When you’re in a bright place, your pupils appear smaller to prevent too much light from entering your eyes. Your pupils automatically contract in bright lights and dilate in dim lights, as controlled by the muscles in your iris. These are just some of the reasons that can make your pupils appear bigger: 1. There are many other (and potentially more probable) reasons for pupils to dilate. Not all dilated pupils are caused by an emotional state. Or they might just really want that donut you’re holding. So, keep your eyes peeled if someone is beaming ‘the look of love’ your way – it may be one of the telltale signs of attraction. You can’t control the size of your pupils when you’re looking at something that triggers a physiological reaction – but whether that reaction signifies romantic love, lust, or like is up to you. But does that translate to love at first (or, if you’re lucky, millionth) sight? Some studies have shown that even just looking at an image of someone you’re attracted to can make your pupils dilate. Pupillary dilation is a reflex action that can be triggered by physiological factors, such as excitement and attraction. So, do your pupils dilate when you love someone? When you are attracted or excited by what you see, your pupils might dilate to allow you to take in all the details. It’s an involuntary action in your body, controlled by the autonomic nervous system, which means you don’t really have control over when it happens.ĭim lighting is one of the most common reasons for pupils to dilate – they get bigger in order to receive as much light as possible, so you can see your surroundings clearly. There are many factors that can cause your pupils to dilate (get bigger) and contract (get smaller). Your pupils are the holes in the centre of the coloured part of your eye (which is called the iris) that allow light to pass through the eye. Find out what causes your pupils to dilate and how long pupil dilation typically lasts. Here, we explore the relation between dilated pupils and love. Turns out, it’s all in the eye of the beholder – literally. You might have heard that dilated pupils are a sign of love – so does that mean “love at first sight” has some truth to it?
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