SECTOR PUPIL PALSY Meaning and
Definition
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Sector pupil palsy, also known as Adie's syndrome or tonic pupil, is a neurological condition characterized by an abnormality in the size and response of one or both of the pupils. This condition typically occurs unilaterally, affecting only one eye, though in some cases it can be bilateral. Initially, sector pupil palsy causes the affected pupil to become enlarged, a condition called tonic pupil or Adie's pupil. The pupil's responsiveness to light is diminished, and it tends to react slowly and sluggishly, or sometimes not at all. This results in a limited constriction of the affected pupil when exposed to light.
The term "sector" in sector pupil palsy refers to the specific part of the pupil that remains unresponsive to light, while the rest of the pupil constricts normally. The lack of response in this specific sector distinguishes sector pupil palsy from other types of pupil abnormalities.
The exact cause of sector pupil palsy is unknown, although it is believed to be a result of damage to the autonomic nervous system, which controls the pupil's size and response. It is more commonly observed in females and often affects individuals between the ages of 20 and 40 years. In most cases, sector pupil palsy is not associated with any other neurological symptoms and does not require treatment. However, occasionally the condition can cause impaired near vision or difficulty in focusing, for which corrective lenses may be prescribed.
Common Misspellings for SECTOR PUPIL PALSY
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