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Related Experiment Videos

Mobility performance in glaucoma.

K A Turano1, G S Rubin, H A Quigley

  • 1Wilmer Eye Institute, The Johns Hopkins University, School of Medicine, Baltimore, Maryland, USA. kathy@lions.med.jhu.edu

Investigative Ophthalmology & Visual Science
|November 5, 1999
PubMed
Summary
This summary is machine-generated.

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Glaucoma patients show a modest decrease in mobility performance, walking slower and experiencing more mobility incidents. Walking speed is linked to glaucoma severity, as measured by vision tests.

Area of Science:

  • Ophthalmology
  • Gerontology
  • Biomechanics

Background:

  • Glaucoma is a progressive optic neuropathy leading to vision loss.
  • Impaired vision can impact daily activities and increase fall risk.
  • Mobility performance is crucial for independence in older adults.

Purpose of the Study:

  • To investigate the effect of glaucoma on mobility performance.
  • To examine the relationship between glaucoma stage and mobility.
  • To compare mobility incidents and fall risk between glaucoma patients and controls.

Main Methods:

  • Compared mobility performance (walking time, incidents) in 47 glaucoma patients and 47 controls.
  • Assessed subjective falling and fear of falling.
  • Evaluated vision function using visual acuity, contrast sensitivity, and visual field tests (Humphrey 24-2, Esterman).

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Main Results:

  • Glaucoma subjects walked 10% slower than controls.
  • Mobility incidents were nearly double in glaucoma patients, though not statistically significant.
  • Visual fields from Humphrey 24-2 correlated best with walking speed in glaucoma patients.

Conclusions:

  • Glaucoma is associated with reduced mobility performance.
  • Decreased walking speed in glaucoma correlates with disease severity estimated by threshold perimetry.