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Open Angle Glaucoma: Treatment01:27

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In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
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Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
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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: Jan 7, 2026

The Corneal Micropocket Assay: A Model of Angiogenesis in the Mouse Eye
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VEGF-C Aqueous Humor Levels in Patients With Primary Open Angle Glaucoma.

Georgios S Dimtsas1, Alexandra Ieronymaki2, Klio I Chatzistefanou2

  • 11 Department of Ophthalmology, National and Kapodistrian University of Athens, "G. Gennimatas" General Hospital, Athens, Greece; gdimtsas@med.uoa.gr.

In Vivo (Athens, Greece)
|January 2, 2026
PubMed
Summary
This summary is machine-generated.

This study found no significant difference in aqueous humor vascular endothelial growth factor-C (VEGF-C) levels between primary open-angle glaucoma (POAG) patients and controls. Results do not support VEGF-C up-regulation in POAG.

Keywords:
Aqueous humorcytokinegrowth factorprimary open angle glaucoma (POAG)vascular endothelial growth factor-C (VEGF-C)

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Area of Science:

  • Ophthalmology
  • Glaucoma Research
  • Molecular Biology

Background:

  • Vascular endothelial growth factor-C (VEGF-C) is implicated in various ocular conditions.
  • Understanding VEGF-C's role in primary open-angle glaucoma (POAG) is crucial for developing targeted therapies.
  • Previous research on VEGF-C in POAG is limited.

Purpose of the Study:

  • To quantitatively compare aqueous humor VEGF-C concentrations in POAG patients versus non-glaucomatous controls.
  • To investigate potential correlations between VEGF-C levels and POAG.
  • To evaluate VEGF-C's utility as a biomarker for POAG detection.

Main Methods:

  • Observational, cross-sectional study design.
  • Aqueous humor samples collected via anterior chamber paracentesis during surgery.
  • VEGF-C levels quantified using a multiplex magnetic bead immunoassay.

Main Results:

  • A total of 76 participants (39 POAG, 37 controls) were included.
  • Mean aqueous humor VEGF-C concentrations were 26.41±26.016 pg/ml in POAG and 16.70±8.60 pg/ml in controls (p=0.277).
  • No statistically significant difference in VEGF-C levels was observed between groups; ROC analysis showed limited prognostic ability (AUC=0.60).

Conclusions:

  • This study is the first large-scale evaluation of aqueous humor VEGF-C in POAG.
  • The findings do not support the hypothesis of VEGF-C up-regulation in POAG.
  • VEGF-C is unlikely to be a significant biomarker for POAG.