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Related Experiment Video

Updated: Oct 2, 2025

Chronic Constriction Injury of the Rat's Infraorbital Nerve IoN-CCI to Study Trigeminal Neuropathic Pain
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Supraspinal Mechanisms Underlying Ocular Pain.

Nicholas J Pondelis1, Eric A Moulton1,2

  • 1Brain and Eye Pain Imaging Lab, Pain and Affective Neuroscience Center, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States.

Frontiers in Medicine
|February 25, 2022
PubMed
Summary

Neuropathic eye pain involves brain mechanisms, not just the eye itself. Understanding these supraspinal pain pathways is key to developing effective treatments for chronic eye pain.

Keywords:
brainbrainstemeyefMRIneuroimagingocularpainsupraspinal

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Area of Science:

  • Neuroscience
  • Ophthalmology
  • Pain Research

Background:

  • Neuropathic ocular conditions are increasingly linked to supraspinal pain mechanisms.
  • Previously, these conditions were considered solely peripheral.
  • Differentiating centralized causes is crucial for understanding and treating neuropathic eye pain.

Purpose of the Study:

  • To review supraspinal mechanisms underlying pain perception in the eye.
  • To bridge the gap between brain pain processing research and ocular pain conditions.

Main Methods:

  • Review of functional neuroimaging studies on brain pain networks.
  • Analysis of existing literature on ocular pain transduction and central processing.

Main Results:

  • Extensive research exists on brain networks for pain processing.
  • Limited functional imaging studies focus on the eye as a pain transducer.
  • Supraspinal pathways play a significant role in neuropathic eye pain.

Conclusions:

  • Central pain mechanisms are vital for understanding neuropathic eye pain.
  • Further research integrating neuroimaging and ophthalmology is needed.
  • Targeting supraspinal pathways may offer new treatment avenues.