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Related Experiment Video

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Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
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Optic Disc Microvasculature Reduction and Visual Field Progression in Advanced Primary Open-Angle Glaucoma.

Min Hee Suh1, Robert N Weinreb2, Shahin Hallaj2

  • 1From the Department of Ophthalmology (M.H.S.), Haeundae Paik Hospital, Inje University College of Medicine, Busan, South Korea.

American Journal of Ophthalmology
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Summary

Optic disc vessel density (ODVD) reduction is a significant indicator of glaucoma progression across all disease severities. Faster ODVD reduction rates correlate with faster visual field progression in primary open-angle glaucoma patients.

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Area of Science:

  • Ophthalmology
  • Medical Imaging
  • Glaucoma Research

Background:

  • Primary open-angle glaucoma (POAG) is a leading cause of irreversible blindness.
  • Monitoring disease progression is crucial for effective management.
  • Optic disc vessel density (ODVD) is a potential biomarker for glaucoma progression.

Purpose of the Study:

  • To investigate the association between optic disc vessel density (ODVD) reduction and visual field (VF) progression in POAG patients.
  • To analyze this relationship based on glaucoma severity (early, moderate, advanced).

Main Methods:

  • Retrospective case series of 345 POAG patients.
  • Categorization into early, moderate, and advanced stages based on VF mean deviation.
  • Analysis of optical coherence tomography angiography (OCTA) for ODVD and visual fields (VFs) over at least 3 years.
  • Statistical models (logistic and Cox PH) assessed the link between ODVD change rate and VF progression.

Main Results:

  • Significantly faster ODVD reduction rates were observed in VF progressors across all severity groups (P < 0.001).
  • Both the rate of global ODVD change and binary ODVD reduction were significantly associated with VF progression in multivariable logistic regression (all P < 0.05).
  • Cox PH models confirmed a significant association between ODVD changes and VF progression in early and moderate-to-advanced glaucoma (all P < 0.001).

Conclusions:

  • Reduction in optic disc microvasculature is a valuable marker for detecting glaucoma progression.
  • This finding applies to patients across all stages of glaucoma, including early, moderate, and advanced.
  • ODVD changes can aid in monitoring disease advancement in POAG.