why do pupils dilate when on drugs

If you love someone who abuses drugs or alcohol, youБve likely noticed signs of that substance use. These signs can be physical, behavioral or emotional. One telltale sign of certain drugs is dilated pupils. Now for the important question: БWhat drugs cause dilated pupils? Б
Science Behind What Drugs Cause Dilated Pupils Your pupils are the black dots in the center of your eyes that change in size according to the amount of light youБre in. These little openings in your eyes permit light to enter for better vision and focus. The size of your pupil is directed by the colored portion of your eye, called the iris. Although pupils are generally responsive to your needs for better vision, they sometimes change size as an emotional response or due to chemical changes in the body. Dilation due to substance abuse or taking such medications is usually a temporary reaction to the substance. Poisoning can also cause dilation of your pupils, as can brain injury and disease. When pupils are dilated, other symptoms often point to substance abuse or poisoning as well.


These symptoms include: What Drugs Cause Dilated Pupils? When lighting, brain injury, disease or other causes of pupil dilation can be ruled out, your friend or relativeБs pinpoint or expanded pupils may be due to substance abuse. Knowing what drugs cause dilated pupils can help you to determine what substance theyБre using. Antihistamines, including allergy and cold medicines Eye drops, such as Visine Be aware that if the person you care about is in detox when you notice dilated pupils, it may be a symptom of withdrawal. Withdrawal from heroin and other opiates can cause dilated pupils. ItБs important to consider dilation one sign of possible drug use, but not the only determining factor. Fountain Hills Recovery Helps Patients and Families Recover from Substance Abuse who is abusing drugs or alcohol, getting help for them and the rest of your family is important to ensure a healthy recovery for everyone involved. Know that you arenБt alone on this journey. In the U. S. , nearly 22 million people and those who love them are in need of the same type of recovery, according to the of the Substance Abuse and Mental Health Administration.


At Fountain Hills Recovery in Fountain Hills, Arizona, addiction specialists and other members of the treatment team are ready to help you every step of the way. Call Fountain Hills Recovery at. You look in the mirror and notice that the dark circles in the middle of your are bigger than usual. What's going on? Those dark circles are your pupils, the openings that let light enter your eye so you can see. Muscles in the colored part of your, called the iris, control your pupil size. Your pupils get bigger or smaller, depending on the amount of light around you. In low light, your pupils open up, or dilate, to let in more light. When itвs bright, they get smaller, or constrict, to let in less light. Sometimes your pupils can dilate without any change in the light. The medical term for it is mydriasis. Medicines, injuries, and diseases can all cause this eye condition. A few medicines can affect the muscles that control your pupils and prevent them from getting smaller when light shines in.


These meds include: (Atropen), which treats problems with rhythm, issues, and some types of poisoning, like diphenhydramine, like and anti- medicines such as Parkinson's medications such as ( ) and -levodopa ( like amitriptyline ( ) and ( (, Myobloc) Anti- drugs, such as ( ) and topiramate ( Dilated pupils are one sign that someone has used, such as: These drugs affect the muscle that widens the pupil, slowing how it reacts to light. So even in a bright room, the stay dilated. Withdrawal from these drugs can also make the pupils stay open wide. Pressure that builds inside your after a head injury, or tumor can damage the muscles in your iris that normally make your pupils open and close. One or both of your pupils can become fixed in the dilated position and canвt react to light. If that happens, you should see a doctor right away. If you've had a, your doctor or nurse might shine a light into your during the exam to see if your pupils get smaller.

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