Fear of falling and postural reactivity in patients with glaucoma

Fear of falling and postural reactivity in patients with glaucoma

Author Daga, Fablo B. Autor UNIFESP Google Scholar
Diniz-Filho, Alberto Google Scholar
Boer, Erwin R. Google Scholar
Gracitelli, Carolina P. B. Autor UNIFESP Google Scholar
Abe, Ricardo Y. Google Scholar
Medeiros, Felipe A. Google Scholar
Abstract Purpose To investigate the relationship between postural metrics obtained by dynamic visual stimulation in a virtual reality environment and the presence of fear of falling in glaucoma patients. Methods This cross-sectional study included 35 glaucoma patients and 26 controls that underwent evaluation of postural balance by a force platform during presentation of static and dynamic visual stimuli with head-mounted goggles (Oculus Rift). In dynamic condition, a peripheral translational stimulus was used to induce vection and assess postural reactivity. Standard deviations of torque moments (SDTM) were calculated as indicative of postural stability. Fear of falling was assessed by a standardized questionnaire. The relationship between a summary score of fear of falling and postural metrics was investigated using linear regression models, adjusting for potentially confounding factors. Results Subjects with glaucoma reported greater fear of falling compared to controls (-0.21 vs. 0.27

P = 0.039). In glaucoma patients, postural metrics during dynamic visual stimulus were more associated with fear of falling (R-2 = 18.8%

P = 0.001) than static (R-2 = 3.0%

P = 0.005) and dark field (R-2 = 5.7%

P = 0.007) conditions. In the univariable model, fear of falling was not significantly associated with binocular standard perimetry mean sensitivity (P = 0.855). In the multivariable model, each 1 Nm larger SDTM in anteroposterior direction during dynamic stimulus was associated with a worsening of 0.42 units in the fear of falling questionnaire score (P = 0.001). Conclusion In glaucoma patients, postural reactivity to a dynamic visual stimulus using a virtual reality environment was more strongly associated with fear of falling than visual field testing and traditional balance assessment.
xmlui.dri2xhtml.METS-1.0.item-coverage San Francisco
Language English
Sponsor National Institutes of Health/National Eye Institute [EY021818]
Brazilian National Council for Scientific and Technological Development (CNPq) [233829/2014-8]
Alcon Laboratories (Fort Worth, TX)
Bausch & Lomb (Garden City, NY)
Carl Zeiss Meditec (Jena, Germany)
Heidelberg Engineering (Heidelberg, Germany)
Merck (White House Station, NJ)
Allergan (Irvine, CA)
Sensimed (Lausanne, Switzerland)
Topcon (Livermore, CA)
Reichert (Dewey, NY)
National Eye Institute (Bethesda, MD)
Novartis (Basel, Switzerland)
nGoggle (San Diego, CA)
Grant number CNPq [233829/2014-8]
Date 2017
Published in Plos One. San Francisco, v. 12, n. 12, p. -, 2017.
ISSN 1932-6203 (Sherpa/Romeo, impact factor)
Publisher Public Library Science
Extent -
Origin http://dx.doi.org/10.1371/journal.pone.0187220
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000417212200013
URI https://repositorio.unifesp.br/handle/11600/54006

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