Sun, MJ;
Rubin, GS;
Akpek, EK;
Ramulu, PY;
(2017)
Impact of Glaucoma and Dry Eye on Text-Based Searching.
Translational Vision Science & Technology
, 6
(3)
, Article 24. 10.1167/tvst.6.3.24.
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Abstract
PURPOSE: We determine if visual field loss from glaucoma and/or measures of dry eye severity are associated with difficulty searching, as judged by slower search times on a text-based search task. METHODS: Glaucoma patients with bilateral visual field (VF) loss, patients with clinically significant dry eye, and normally-sighted controls were enrolled from the Wilmer Eye Institute clinics. Subjects searched three Yellow Pages excerpts for a specific phone number, and search time was recorded. RESULTS: A total of 50 glaucoma subjects, 40 dry eye subjects, and 45 controls completed study procedures. On average, glaucoma patients exhibited 57% longer search times compared to controls (95% confidence interval [CI], 26%-96%, P < 0.001), and longer search times were noted among subjects with greater VF loss (P < 0.001), worse contrast sensitivity (P < 0.001), and worse visual acuity (P = 0.026). Dry eye subjects demonstrated similar search times compared to controls, though worse Ocular Surface Disease Index (OSDI) vision-related subscores were associated with longer search times (P < 0.01). Search times showed no association with OSDI symptom subscores (P = 0.20) or objective measures of dry eye (P > 0.08 for Schirmer's testing without anesthesia, corneal fluorescein staining, and tear film breakup time). CONCLUSIONS: Text-based visual search is slower for glaucoma patients with greater levels of VF loss and dry eye patients with greater self-reported visual difficulty, and these difficulties may contribute to decreased quality of life in these groups. TRANSLATIONAL RELEVANCE: Visual search is impaired in glaucoma and dry eye groups compared to controls, highlighting the need for compensatory strategies and tools to assist individuals in overcoming their deficiencies.
| Type: | Article |
|---|---|
| Title: | Impact of Glaucoma and Dry Eye on Text-Based Searching |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1167/tvst.6.3.24 |
| Publisher version: | http://doi.org/10.1167/tvst.6.3.24 |
| Language: | English |
| Additional information: | Copyright © 2017 The Authors. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. |
| Keywords: | dry eye, glaucoma, visual fields, visual search |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Institute of Ophthalmology |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1566871 |
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