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Abstract #92216 Published in IGR 22-1
Interventions to Improve Reading Performance in Glaucoma
Ikeda MC; Ikeda MC; Hamada KU; Hamada KU; Bando AH; Bando AH; Nakamura VPL; Nakamura VPL; Prata TS; Tatham AJ; Paranhos A; Gracitelli CPBOphthalmology. Glaucoma 2021; 0:
PURPOSE: To evaluate whether changes to contrast, line spacing, or font size can improve reading performance in patients with glaucoma. DESIGN: Cross-sectional study. PARTICIPANTS: Thirty-five patients with glaucoma and 32 healthy control participants. METHODS: A comprehensive ophthalmologic examination was performed followed by reading speed assessment using the Minnesota Low Vision Reading (MNREAD) test under a range of contrasts (10%, 20%, 30%, 40%, and 50%), line spacings (1.0, 1.5, 2.0, 2.5, and 3.0 lines), and font sizes (0.8, 0.9, 1.0, 1.1, and 1.2 logarithm of the minimum angle of resolution), for a total of 15 tests. Regression analyses were performed to examine the effect of varying test conditions on reading speed (measured in words per minute [wpm]). RESULTS: Participants' mean age was 63.0 ± 12.6 years. Patients with glaucoma showed a visual field mean deviation in the better eye of -6.29 ± 6.35 dB. Reading speeds were significantly slower in patients with glaucoma versus control participants for 14 of the 15 MNREAD tests, despite no significant differences in age, gender, or education between groups. Increased contrast (from 10% to 50%) was associated with faster reading speed in patients with glaucoma (10.6-wpm increase per 10% increase in contrast; 95% confidence interval, 7.4-13.8 wpm; P < 0.001; R = 0.211). No significant improvement was found in reading speed with increase in font size or line spacing. CONCLUSIONS: Patients with glaucoma showed significantly slower reading speeds than similarly aged control participants. Reading speed was improved by increasing contrast, but not by increases in line spacing or font size.
Department of Ophthalmology and Visual Science, Glaucoma Service, Federal University of São Paulo, São Paulo, Brazil.
Full articleClassification:
6.6.3 Special methods (e.g. color, contrast, SWAP etc.) (Part of: 6 Clinical examination methods > 6.6 Visual field examination and other visual function tests)
