Constricted Pupils (Miosis): Causes, Symptoms & When to See a Doctor
Constricted pupils (miosis) can result from:
- Bright Light: Normal physiological constriction.
- Medications: Opioid painkillers, others.
- Neurological Disorders: Horner's syndrome, oculomotor nerve palsy disrupt pupil control pathways.
- Drugs/Substances: Cocaine, amphetamines, hallucinogens.
- Head Injuries: Damage to nerves/brain regions controlling pupil size.
- Parasympathetic Stimulation: Drugs or physiological responses activating parasympathetic system.
Constriction can be normal (bright light) or indicate pathology. If sudden/persistent with other symptoms, consult a healthcare professional.
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