🔍 Pupil Dilation vs. Pupil Constriction: Causes & Clinical Clues!
In this video, we explore pupil dilation vs. pupil constriction—a key clinical sign that reveals the body’s autonomic state and underlying pathology. You'll learn the most important causes of pupil dilation, causes of pupil constriction, and how to recognize the most dangerous clinical clues behind these findings.
We’ll start by explaining how the sympathetic and parasympathetic nervous systems control pupil size. Then, we’ll dive into the toxicological and neurological causes of miosis (pupil constriction) and mydriasis (pupil dilation)—including drug overdoses, brain injuries, and emergency red flags.
🔍 What you’ll learn:
The clinical clues that help distinguish toxic, traumatic, or neurogenic causes
Mnemonics like COPS and SAW to help remember key drug-related pupil changes
Why pupil dilation vs. pupil constriction is more than just a physical sign—it’s a potential life-saving clue
Examples include:
Opioid overdose with pinpoint pupils and respiratory depression
Anticholinergic poisoning with dilated pupils, dry skin, and urinary retention
Brain herniation with a fixed, dilated pupil and altered mental status
Whether you're a medical student, clinician, or prepping for exams, this is your ultimate guide to understanding pupil dilation vs. pupil constriction: causes and clinical clues you can't afford to miss.
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#PupilDilation #PupilConstriction #Miosis #Mydriasis