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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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Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
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Published on: February 15, 2022

Balance control in glaucoma.

Aachal Kotecha1, Greg Richardson, Reena Chopra

  • 1Department of Visual Neuroscience, University College London, Institute of Ophthalmology, London, United Kingdom. aachalkotecha@gmail.com

Investigative Ophthalmology & Visual Science
|October 13, 2012
PubMed
Summary
This summary is machine-generated.

Glaucoma patients exhibit impaired postural stability, with reduced reliance on vision and increased reliance on somatosensation for balance. This compromise in balance control is linked to the severity of visual field loss.

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Published on: April 24, 2020

Area of Science:

  • Ophthalmology
  • Neurology
  • Biomechanics

Background:

  • Glaucoma is a progressive optic neuropathy.
  • Visual field loss in glaucoma can impact overall sensory integration.
  • Postural stability is crucial for daily function and fall prevention.

Purpose of the Study:

  • To compare postural stability between glaucoma patients and healthy controls.
  • To investigate the visual and somatosensory contributions to balance in glaucoma.
  • To determine the relationship between visual field loss and balance control.

Main Methods:

  • Utilized a force-balance platform to measure postural sway in 24 glaucoma patients and 24 controls.
  • Assessed balance under eyes open/closed conditions on firm and foam surfaces.
  • Calculated Romberg Quotient (RQ) for visual contribution and sway change for somatosensory contribution.
  • Correlated balance measures with binocular mean deviation (BinMD) from visual field tests.

Main Results:

  • Glaucoma patients showed significantly lower visual contribution to balance (AP RQ) compared to controls (P=0.0001).
  • Glaucoma patients demonstrated a higher relative somatosensory contribution to balance (P=0.002).
  • Binocular visual field loss (BinMD) significantly predicted both visual (P=0.0001) and somatosensory (P=0.02) balance contributions.

Conclusions:

  • Glaucoma patients exhibit altered visual and somatosensory contributions to standing balance.
  • Balance control deficits in glaucoma are associated with the extent of binocular visual field loss.
  • These findings suggest compromised balance control in individuals with glaucoma.