Dilated pupils may be caused by sympathetic excitation, increased intracranial pressure, atropine poisoning, etc. Whether the pupils can return to normal is related to the condition and treatment effect.
1. Sympathetic excitation: after sympathetic excitation, the pupil opening muscle function is enhanced, if the patient’s sympathetic excitation, the pupil dilatation can appear, the patient’s pupil can be gradually restored after the mood is stable.
2. Increased intracranial pressure: severe hypertension, cerebral edema, cerebral hemorrhage, etc. can lead to increased intracranial pressure, and even the formation of cerebral hernia, inhibition of the nucleus of the brainstem motor nerve, resulting in pupil sphincter dysfunction, the patient may appear pupil dilation. If the intracranial lesion is mild, use 20% mannitol and other medications as prescribed by the doctor, and after lowering the cranial pressure, the pupil size can be gradually restored.
If the patient’s intracranial lesions are serious, surgery, drug treatment and other effects are not good, the patient’s pupils may not be restored, or even death.
3. Atropine poisoning: a large number of M receptor blockers such as atropine, scopolamine and other drugs act on the body to cause toxic effects, pupil sphincter dysfunction and pupil dilation, after the metabolism of the drug, the patient’s pupil can generally return to normal.
It is recommended that patients with obvious pupil dilation should consult a doctor in time to assess their condition and follow the doctor’s instructions for treatment.