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Ex Vivo OCT-Based Multimodal Imaging of Human Donor Eyes for Research into Age-Related Macular Degeneration
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Multimodal imaging of optic disc drusen.

Taku Sato1, Sarah Mrejen, Richard F Spaide

  • 1Vitreous Retina Macula Consultants of New York, New York, NY 10022, USA.

American Journal of Ophthalmology
|May 17, 2013
PubMed
Summary

Optic disc drusen, extracellular deposits, were evaluated using optical coherence tomography (OCT) and autofluorescence. Larger drusen and greater optic canal occupation correlated with retinal nerve fiber layer abnormalities.

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Area of Science:

  • Ophthalmology
  • Neuro-ophthalmology
  • Medical Imaging

Background:

  • Optic disc drusen are extracellular protein deposits.
  • These deposits contain numerous aggregates of mitochondria.
  • Understanding their in vivo characteristics is crucial.

Purpose of the Study:

  • To evaluate optic disc drusen using multimodal imaging.
  • Utilized optical coherence tomography (OCT) and autofluorescence imaging.
  • Investigated the relationship between drusen and retinal nerve fiber layer thickness.

Main Methods:

  • Retrospective observational case series.
  • Employed enhanced depth imaging (EDI)-OCT and swept source OCT.
  • Fundus autofluorescence imaging was also utilized.

Main Results:

  • Twenty-six eyes with optic disc drusen were analyzed.
  • OCT revealed ovoid, lower reflectivity regions with hyperreflective borders.
  • Significant negative correlations found between drusen size/area and retinal nerve fiber layer thickness.

Conclusions:

  • Deeper-penetration OCT effectively visualized optic disc drusen characteristics in vivo.
  • Drusen size and optic canal occupation correlate with retinal nerve fiber layer abnormalities.
  • Multimodal imaging aids in understanding optic disc drusen pathology.