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Related Experiment Video

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Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
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Abnormal interhemispheric resting-state functional connectivity in primary open-angle glaucoma.

Peng Zhou, Jieqiong Wang, Ting Li

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |March 9, 2017
    PubMed
    Summary

    Primary open-angle glaucoma (POAG) patients show altered brain connectivity. Resting-state functional connectivity (RSFC) analysis revealed decreased connectivity in visual processing areas and increased connectivity in other brain regions, offering insights into glaucoma's neurological impact.

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    Area of Science:

    • Neuroscience
    • Ophthalmology
    • Medical Imaging

    Background:

    • Glaucoma is a leading cause of blindness.
    • Understanding glaucoma's neurological mechanisms is crucial.
    • Interhemispheric functional connectivity in glaucoma is understudied.

    Purpose of the Study:

    • To investigate alterations in brain's interhemispheric resting-state functional connectivity (RSFC) in primary open-angle glaucoma (POAG) patients.
    • To utilize the voxel-mirrored homotopic connectivity (VMHC) method for this analysis.

    Main Methods:

    • Employed voxel-mirrored homotopic connectivity (VMHC) analysis.
    • Compared resting-state functional connectivity (RSFC) between POAG patients and healthy controls.
    • Correlated brain connectivity measures with clinical parameters like Cup-to-disk Ratio.

    Main Results:

    • Decreased VMHC observed in the precuneus and occipital lobe (calcarine, cuneus) in POAG patients.
    • Increased VMHC found in the lingual gyrus, insula, supramarginal gyrus, and frontal gyrus.
    • Negative correlation between mean VMHC in the precuneus and Cup-to-disk Ratio (r=-0.551, P=0.041).

    Conclusions:

    • Significant differences in VMHC between POAG patients and controls indicate altered brain functional connectivity.
    • These findings highlight functional brain damage associated with POAG.
    • The study enhances the understanding of the neurological underpinnings of primary open-angle glaucoma.