![]() ![]() Injuries that can damage your iris muscles and dilate your pupils include: "Trauma to the eye can cause damage to the muscles that constrict the pupil, which makes the pupil stay dilated," Mackay says. The colored part of your eye, the iris, has muscles that control the constriction and dilation of your pupils. When these chemicals are released, your pupils dilate, even if you're just looking at a photo of an attractive person. When you feel sexually attracted to someone, your nervous system is stimulated and your body releases several hormones including dopamine, norepinephrine, and serotonin. This type of injury can cause your brain to swell and press on the oculomotor nerve, making one or both of your pupils dilate, Mackay says. Damage to the oculomotor nerve can also make your eyelid droop or limit your eye movement on the side of the injury Mackay says.īrain injury can be caused by something hitting your head, but you can also have an internal injury from a stroke, a brain tumor, or bleeding in your brain. "Severe head trauma can stretch the nerve and damage its fibers, which can result in a dilated pupil," Mackay says. When this nerve is injured, it can cause many different problems in your eyes. The nerve fibers that control the size of your pupil are within a larger nerve that originates in your brainstem called the oculomotor nerve. Hallucinogens like LSD (lysergic acid diethylamide) and psilocybin mushrooms dilate your pupils by increasing your serotonin levels and activating your nervous system.įor a full list of drugs that can dilate your pupils, see here.These chemicals stimulate your nervous system, including the nerves that control your pupil. ![]() MDMA, also called molly or ecstasy, can make your pupils dilate because it increases serotonin, dopamine, and norepinephrine hormones in your body.Cocaine and crack cocaine can cause your pupils to dilate because your body releases higher levels of endorphins and adrenaline, which stimulate the nerves that control your pupil size.Some common drugs that affect your pupils include: Recreational drugs also affect your nervous system and can cause your pupils to dilate or shrink regardless of the light you're in. Anticholinergic medications used to treat overactive bladder or Parkinson's disease like Oxybutynin (Ditropan XL, Oxytrol) and benztropine (Cogentin).Stimulant medications like (amphetamine) Adderall or methylphenidate (Ritalin).Motion-sickness patches like scopolamine.Antihistamines like diphenhydramine (Benadryl) and loratadine (Claritin).There are many different types of medications that can interfere with the nerves that make your pupils dilate, including: Mackay, MD, Director of Neuro-Ophthalmology at the Indiana University School of Medicine. "Certain medications can interfere with the messages from the nerves that tell the pupil to dilate or constrict," says Devin D. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |