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Related Concept Videos

Glaucoma: Overview01:25

Glaucoma: Overview

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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Angle Closure Glaucoma: Treatment

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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Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
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Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

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Related Experiment Video

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Measuring Ascending Aortic Stiffness In Vivo in Mice Using Ultrasound
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Published on: December 2, 2014

Systemic arterial stiffness in glaucoma patients.

Tatsuya Chiba1, Nami Chiba, Kenji Kashiwagi

  • 1Department of Ophthalmology, University of Yamanashi, Faculty of Medicine, Chuo Yamanashi, Japan.

Journal of Glaucoma
|February 28, 2008
PubMed
Summary

Systemic arterial stiffness, measured by brachial-ankle pulse wave velocity (baPWV), was not strongly associated with glaucoma in this study. Glaucoma patients and controls without arteriosclerosis risk factors showed similar baPWV levels.

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Area of Science:

  • Ophthalmology
  • Cardiovascular Medicine
  • Vascular Biology

Background:

  • Glaucoma is a leading cause of irreversible blindness.
  • Systemic arterial stiffness is a marker of cardiovascular health and has been implicated in various diseases.
  • The relationship between systemic arterial stiffness and glaucoma requires further investigation.

Purpose of the Study:

  • To investigate systemic arterial stiffness in patients with glaucoma.
  • To compare systemic arterial stiffness between different types of glaucoma (normal-tension glaucoma and primary open-angle glaucoma/ocular hypertension) and controls.
  • To explore the correlation between systemic arterial stiffness and glaucoma severity.

Main Methods:

  • 140 glaucoma patients and 121 controls were enrolled.
  • Systemic arterial stiffness was assessed using brachial-ankle pulse wave velocity (baPWV).
  • Patients were categorized based on the presence or absence of arteriosclerosis risk factors.

Main Results:

  • A significant difference in baPWV was observed between subjects with and without arteriosclerosis risk factors (P<0.0001).
  • No significant difference in baPWV was found among control, normal-tension glaucoma, and primary open-angle glaucoma/ocular hypertension patients without risk factors.
  • baPWV correlated positively with age but showed no significant differences across the glaucoma types and controls.

Conclusions:

  • Systemic arterial stiffness does not appear to be strongly associated with glaucoma.
  • Further research may be needed to elucidate potential subtle links or specific patient subgroups.
  • The study highlights the importance of considering arteriosclerosis risk factors when evaluating systemic arterial stiffness.