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Pupil Dilation in Neurological Problems

Brain functions and neurological changes can impact pupil and pupil dilation. Through proper pupil exam, the reason behind pupil dilation can be detected.

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Pupil Dilation in Neurological Problems

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  1. Pupil Dilation in Neurological Problems ©Copyright by Neuroptics.com

  2. ThePupil examis one of the most important parts of theneurological assessment. Any major concussion may cause a certain percent change in pupil size.  • Often, a temporary or permanent vision problem follows a concussion. Critical injuries cause permanent damage to the optic nerve. • Following are the causes why pupil dilation occurs in neurological problems: ©Copyright by Neuroptics.com

  3. Any nerve damage or inflammation in the ciliary ganglion that sits just behind the eye may cause multiple symptoms in the eye, comprising the improperly dilated pupil. • Stimulation of the sympathetic branch of the autonomic nervous system may trigger "fight or flight" responses. Pupil dilation occurs particularly in cases when the body is under stress. The adrenaline rush may give rise to pupil dilation and help to detect any dangers by ensuring the best vision possible. ©Copyright by Neuroptics.com

  4. On the contrary, stimulation of the parasympathetic system, or "rest and digest" functions, may give rise to constriction of the same. • Other than that, Anisocoria, Coloboma, third cranial nerve palsy, Pituitary gland tumor, brain injury, Iritis, Cluster headache, Adie syndrome, and Horner's syndrome affect the pupils. ©Copyright by Neuroptics.com

  5. Since the center of the pupil is not constant, the pupil dilation velocityvaries with pupil size. • The pupil center shift's speed could be estimated to be 0.097 mm/s during constriction and 0.081 mm/s in case of dilation. ©Copyright by Neuroptics.com

  6. Conclusion • A minor change in the size, equality, and reactivity of the pupils offers considerable diagnostic information. • Sometimes, medications may impact your pupils. Remember, pupil reactivityis a physiological reaction that varies the pupil size through the optic cranial or oculomotor nerve. ©Copyright by Neuroptics.com

  7. The high-precision NPI 300 pupilometer gives precise pupillary size measurement and unrestricted reactivity data. The digital device can measure the distance between the center of each pupil by the corneal reflection. The bottom line • Neurological complications may causepupil dilation. The autonomic nervous system's sympathetic branch is responsible for this. The modern device called NPI 300 pupilometer helps detect a percent change in pupil size. ©Copyright by Neuroptics.com

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