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Related Concept Videos

Glaucoma: Overview01:25

Glaucoma: Overview

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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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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: Treatment01:28

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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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Genome-wide Association Studies-GWAS01:11

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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
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Potential Causal Association Between Atrial Fibrillation/Flutter and Primary Open-Angle Glaucoma: A Two-Sample

Young Lee1, Je Hyun Seo1

  • 1Veterans Medical Research Institute, Veterans Health Service Medical Center, Seoul 05368, Republic of Korea.

Journal of Clinical Medicine
|January 8, 2025
PubMed
Summary

Atrial fibrillation/flutter (AF/L) may causally increase the risk of primary open-angle glaucoma (POAG). This study confirms a significant causal link, suggesting AF/L as a potential POAG risk factor.

Keywords:
atrial fibrillationatrial fluttermendelian randomisationprimary open-angle glaucomasingle-nucleotide polymorphismssleep apnoea

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Area of Science:

  • Cardiovascular Medicine
  • Ophthalmology
  • Genetics

Background:

  • Conflicting evidence exists regarding the association between atrial fibrillation/flutter (AF/L) and primary open-angle glaucoma (POAG).
  • This research investigates a potential causal link between AF/L and POAG.

Purpose of the Study:

  • To determine if AF/L causally influences the development of POAG.
  • To assess potential confounding factors in the AF/L-POAG relationship.

Main Methods:

  • Utilized a two-sample Mendelian randomization (MR) approach.
  • Employed genome-wide association study (GWAS) data for AF/L (FinnGen) and POAG (UK Biobank).
  • Performed multivariable MR to adjust for hypertension, hyperthyroidism, sleep apnea, and alcohol use disorder.

Main Results:

  • A significant causal association was found between AF/L and POAG (OR=1.26, p=0.005).
  • Multivariable MR confirmed this causal link (OR=1.24, p=0.034).
  • Hypertension, hyperthyroidism, sleep apnea, and alcohol use disorder did not show significant causal effects on POAG.

Conclusions:

  • This study establishes a causal relationship between AF/L and POAG.
  • AF/L may be a risk factor for POAG, warranting further investigation.
  • Additional research is needed to validate these findings.