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Related Concept Videos

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Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
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Related Experiment Video

Updated: Mar 15, 2026

Author Spotlight: Ex Vivo OCT-Based Multimodal Imaging of Human Donor Eyes for Research into Age-Related Macular Degeneration
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Optic Disc Structural Progression in Glaucoma Suspect Eyes With Microvascular Dropout.

Ghazaleh Soltani1, Takashi Nishida1, Sasan Moghimi1

  • 1From the Hamilton Glaucoma Center (G.S., T.N., S.M., S.H., A.d.O.P., and R.N.W.), Shiley Eye Institute, Viterbi Family Department of Ophthalmology, University of California San Diego, La Jolla, California, USA.

American Journal of Ophthalmology
|March 13, 2026
PubMed
Summary
This summary is machine-generated.

Microvascular dropout (MvD) and β-zone parapapillary atrophy (PPA) progression are linked to structural optic disc changes in glaucoma suspects. Early identification of these markers may aid in preventing vision loss.

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Area of Science:

  • Ophthalmology
  • Glaucoma Research
  • Retinal Imaging Analysis

Background:

  • Glaucoma suspect eyes require monitoring for structural progression.
  • Parapapillary atrophy (PPA) and microvascular changes are potential indicators of glaucoma development.
  • Understanding the interplay between structural changes and vascular alterations is crucial for early diagnosis.

Purpose of the Study:

  • To investigate the relationship between structural progression, β-zone PPA progression, and microvascular dropout (MvD) in glaucoma suspect eyes.
  • To determine if MvD and β-zone PPA progression are independently associated with structural optic disc progression.

Main Methods:

  • Retrospective cohort study including eyes with optic disc photographs and OCT angiography (OCTA).
  • Structural progression assessed via stereophotographs; β-zone PPA quantified; MvD evaluated using en-face choroidal vessel density maps.
  • Multivariable logistic regression and margins analysis used to assess associations.

Main Results:

  • 180 eyes from 134 patients were analyzed; 32.2% exhibited MvD.
  • Both MvD and β-zone PPA progression were significantly associated with structural progression.
  • Eyes with both MvD and β-zone PPA progression showed the highest probability of structural progression (0.75).

Conclusions:

  • MvD and β-zone PPA progression are independently associated with structural optic disc progression in glaucoma suspects.
  • These changes occurred even in eyes that remained clinically stable without converting to perimetric glaucoma.
  • Recognizing these structural changes may facilitate timely management to prevent glaucomatous vision loss.