June 2017
Volume 58, Issue 8
Open Access
ARVO Annual Meeting Abstract  |   June 2017
eQUEST: The eSight QUality of life and Efficacy STudy
Author Affiliations & Notes
  • Walter Wittich
    School of Optometry, University of Montreal, Montreal, Quebec, Canada
    Centre de recherche interdisciplinaire en readaptation de Montreal metropolitain, Montreal, Quebec, Canada
  • Marie-Celine Lorenzini
    School of Optometry, University of Montreal, Montreal, Quebec, Canada
  • Judith E Goldstein
    School of Medicine, Johns Hopkins University , Baltimore, Maryland, United States
  • Samuel N Markowitz
    Department of Ophthalmology, University of Toronto, Toronto, Ontario, Canada
  • Beatriz E Patino
    Department of Ophthalmology, University of Toronto, Toronto, Ontario, Canada
  • Kristen Lindeman
    School of Medicine, Johns Hopkins University , Baltimore, Maryland, United States
  • Sonya Braudway
    Center for Retina and Macular Disease, Lakeland, Florida, United States
  • Scott A Gartner
    Lighthouse for the Blind of the Palm Beaches, West Palm Beach, Florida, United States
  • Lindsay Godsay
    University of Michigan, Ann Arbour, Michigan, United States
  • Ashley Howson
    University of Michigan, Ann Arbour, Michigan, United States
  • Michael Tolentino
    Center for Retina and Macular Disease, Lakeland, Florida, United States
  • Thiran Jayasundera
    University of Michigan, Ann Arbour, Michigan, United States
  • Sophia Reyes
    Department of Ophthalmology, University of Toronto, Toronto, Ontario, Canada
  • Gislin Dagnelie
    School of Medicine, Johns Hopkins University , Baltimore, Maryland, United States
  • Footnotes
    Commercial Relationships   Walter Wittich, eSight (F); Marie-Celine Lorenzini, eSight (F); Judith Goldstein, eSight (F); Samuel Markowitz, eSight (F); Beatriz Patino, eSight (F); Kristen Lindeman, eSight (F); Sonya Braudway, eSight (F); Scott Gartner, e (F); Lindsay Godsay, eSight (F); Ashley Howson, eSight (F); Michael Tolentino, eSight (F); Thiran Jayasundera, eSight (F); Sophia Reyes, eSight (F); Gislin Dagnelie, eSight (F)
  • Footnotes
    Support  eSight corporate funding
Investigative Ophthalmology & Visual Science June 2017, Vol.58, 4764. doi:
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      Walter Wittich, Marie-Celine Lorenzini, Judith E Goldstein, Samuel N Markowitz, Beatriz E Patino, Kristen Lindeman, Sonya Braudway, Scott A Gartner, Lindsay Godsay, Ashley Howson, Michael Tolentino, Thiran Jayasundera, Sophia Reyes, Gislin Dagnelie; eQUEST: The eSight QUality of life and Efficacy STudy. Invest. Ophthalmol. Vis. Sci. 2017;58(8):4764.

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

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Abstract

Purpose : eSight Eyewear is a head-mounted magnification device intended to facilitate activities of daily living and improve quality of life for individuals with low vision. The present study aimed to evaluate the effect of training and experience in using eSight Eyewear on functional vision and vision-related quality of life.

Methods : In this prospective multicenter study, 60 participants (M/F = 36/24, age M = 47, range 13-75) with stable vision (acuity 20/60-20/400, visual field > 20°) were recruited across 6 sites (USA & Canada). Exclusion criteria were recent surgical/medical interventions or a score of < 26 on the Montreal Cognitive Assessment. Data were collected at baseline (no device), at device fitting (with device), and after three months of training with and use of the device. Dependent variables were visual ability on the Veteran Affairs Low Vision Visual Function Questionnaire 48 (VA LV VFQ-48), letter acuity (ETDRS), critical reading print size (MNRead), contrast sensitivity (MARS), face recognition, and a modified version of the Melbourne Low Vision Activities of Daily Living (ADL) Index.

Results : To date, complete visual function data are available on 37 participants. Introduction of eSight Eyewear caused a significant improvement in acuity (0.73±0.24 logMAR), contrast sensitivity (0.60±0.25 log units), and critical print size (0.62±0.33 logMAR), p < .001. Practice and training did not result in further changes. A significant change in Melbourne ADL score (7.7±15.3) was observed immediately, p < .004, followed by a trend (p = 0.12) towards further improvement (4.1±15.5) at follow-up; a similar effect was observed for face recognition: immediate improvement (10.2±15.3; p < .001), followed by a further tendency (2.1±14.4; p = 0.38). Most VA LV VFQ-48 person measures improved: overall 1.04 logits, p < .001; reading: 2.95 logits, p < .001; mobility: 0.27 logits, p = .37; visual info: 1.34 logits, p < .001; visual motor: 0.67 logits, p < .01.

Conclusions : In our sample, the introduction of eSight Eyewear resulted in immediate improvements in all visual function measures, with face recognition and ADLs showing a benefit of further practice/training. Self-reported outcomes suggest that visual abilities, such as reading, are greatly improved when wearing the device. Further studies will examine benefits of practice and training and possible differential effects of underlying pathology or baseline vision.

This is an abstract that was submitted for the 2017 ARVO Annual Meeting, held in Baltimore, MD, May 7-11, 2017.

 

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