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Veterans Affairs Low-vision Intervention Trial II: One-year Follow-up
Journal article   Open access   Peer reviewed

Veterans Affairs Low-vision Intervention Trial II: One-year Follow-up

Joan A Stelmack, Charlene Tang, Yongliang Wei, Kenneth Rose, Rex Ballinger, Olga Whitman, Connie Chronister, Scott Sayers, Robert W Massof and LOVIT II Study Group
Optometry and vision science, v 96(10), pp 718-725
Oct 2019
PMID: 31592954
url
https://doi.org/10.1097/OPX.0000000000001428View
Published, Version of Record (VoR) Restricted

Abstract

Activities of Daily Living Aged Aged, 80 and over Female Follow-Up Studies Health Surveys Humans Male Middle Aged Rehabilitation Centers Retinal Diseases - physiopathology Retinal Diseases - rehabilitation Sickness Impact Profile Surveys and Questionnaires Treatment Outcome United States United States Department of Veterans Affairs Veterans - statistics & numerical data Vision, Low - physiopathology Vision, Low - rehabilitation Visual Acuity - physiology Visually Impaired Persons - rehabilitation
One-year follow-up is recommended for patients with macular diseases to assess functional changes associated with disease progression and to modify low-vision (LV) treatment plans, if indicated. The purpose of this study was to observe 255 patients with macular diseases who received LV rehabilitation (rehabilitation with a therapist) or basic LV services (LV devices dispensed without therapy) during Veterans Affairs Low-vision Intervention Trial II after the trial ended at 4 months until 1-year follow-up. The primary outcome measure was visual ability measured with the 48-item Veterans Affairs Low-vision Visual Functioning Questionnaire. Mean visual ability scores for the treatment groups were compared from baseline to 4 months, 4 months to 1 year, and baseline to 1 year. Changes from baseline to 1 year were compared between the two groups. Predictors of changes in visual ability from 4 months to 1 year were assessed using linear regression. Both groups experienced significant improvement in all measures of visual ability from baseline to 1 year but lost visual reading ability during the observation period (LV rehabilitation group, -0.64 [1.2] logit; 95% confidence interval [CI], -0.84 to -0.44 logit; basic LV group, -0.63 [1.4] logit; 95% CI, -0.88 to -0.38 logit), and overall visual ability was lost in the LV rehabilitation group (-0.20 [0.8] logit; 95% CI, -0.34 to -0.06 logit). Loss of visual reading ability in both groups from 4 months to 1 year was predicted by reading ability scores at 4 months, loss of near visual acuity from 4 months to 1 year, and lower EuroQol-5D utility index scores; loss of overall visual ability in the LV rehabilitation group during the same time period was predicted by lower overall ability scores at 4 months. Visual ability significantly improved in all groups from baseline to 1 year. However, the loss of visual reading ability experienced by both groups from 4 months to 1 year reduced the benefit of the services provided.

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Collaboration types
Domestic collaboration
Web of Science research areas
Ophthalmology
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