April 2011
Volume 52, Issue 14
Free
ARVO Annual Meeting Abstract  |   April 2011
Visual Field Loss and Travel Outside of the Home in Glaucoma
Author Affiliations & Notes
  • Chad Hochberg
    Ophthalmology, Wilmer Eye Institute/Johns Hopkins, Baltimore, Maryland
  • Eugenio Maul
    Ophthalmology, Wilmer Eye Institute/Johns Hopkins, Baltimore, Maryland
  • Emilie Chan
    Ophthalmology, Wilmer Eye Institute/Johns Hopkins, Baltimore, Maryland
  • Luigi Ferrucci
    Clinical Research Branch, National Institute of Aging, Baltimore, Maryland
  • David S. Friedman
    Ophthalmology, Wilmer Eye Institute/Johns Hopkins, Baltimore, Maryland
  • Pradeep Y. Ramulu
    Ophthalmology, Wilmer Eye Institute/Johns Hopkins, Baltimore, Maryland
  • Footnotes
    Commercial Relationships  Chad Hochberg, None; Eugenio Maul, None; Emilie Chan, None; Luigi Ferrucci, None; David S. Friedman, None; Pradeep Y. Ramulu, None
  • Footnotes
    Support  NIH Grant EY018595, American Geriatrics Society Dennis W. Jahnigen Award
Investigative Ophthalmology & Visual Science April 2011, Vol.52, 5554. doi:
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    • Get Citation

      Chad Hochberg, Eugenio Maul, Emilie Chan, Luigi Ferrucci, David S. Friedman, Pradeep Y. Ramulu; Visual Field Loss and Travel Outside of the Home in Glaucoma. Invest. Ophthalmol. Vis. Sci. 2011;52(14):5554.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose: : While many have studied the impact of glaucoma on function in clinical research settings, documentation of real-life activity restriction has rarely been reported. Here we examine how travel outside the home is affected by glaucoma.

Methods: : Glaucoma subjects with bilateral visual field loss and control subjects without significant central acuity deficits or visual field loss (as defined by standard automated perimetry) wore cellular network-based devices that tracked their spatial location over one week. Location data were used to calculate the number of daily excursions outside of the home for the two groups.

Results: : 62 subjects with glaucoma and 37 control subjects completed the study. Glaucoma subjects did not differ from control subjects in regard to age, race, gender, employment status or educational level (p>0.15 for all). Overall, 623 person-days of data were collected, with each participant yielding an average 6.3 +/- 1.6 days of tracking data. The range of average daily excursions was 0-5 with a median of 1.14 (IQR=0.7 -1.4), and glaucoma subjects took fewer average excursions per day than controls (median=1.00 vs. 1.33; p=.02). In multivariable models, glaucoma was associated with higher odds of being in the lowest tertile of excursions per day as compared to controls (OR=3.45, p=.014, 95% CI: 1.3-9.3). The odds of being in the tertile with the lowest excursion rate were 54% higher for every 5db of mean deviation loss (OR=1.54, p=0.018, CI: 1.08 - 2.19). The percentage of subjects with no excursions on a given day was 18.6% for controls and 28.2% for glaucoma subjects (p=0.007). Using a generalized estimating equation, glaucoma was associated with higher odds of not leaving the home on a given day (OR=1.7, p=0.077, CI: 0.94 - 3.1).

Conclusions: : Bilateral glaucoma and greater visual field loss are both correlated with less travel outside of the home. Decreased out-of-home travel is associated with frailty, higher mortality, and less independence, pointing to a higher risk of specific health and quality of life impairments in glaucoma.

Keywords: quality of life • low vision • visual fields 
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