The effect of various low-vision aids on reading performance in individuals with visual impairment

Abstract

Given the rising global prevalence of visual impairment and the increasing demand for vision rehabilitation, this study aimed to explore the effects of four types of low-vision aids on reading performance in individuals with visual impairment. Reading performance was assessed using two versions of the Persian MNREAD chart and subsequently re-evaluated with a digital video magnifier, tele-microscope, stand magnifier, and handheld magnifier. This study involved 77 individuals with visual impairment with a mean age of 53.09 ± 16.15 years. The results showed that with the use of low-vision aids, reading acuity significantly improved, critical print size shifted toward smaller font sizes, and reading accessibility index increased. However, a significant decrease in maximum reading speed was observed while using low-vision aids. According to the findings, while low-vision aids significantly improved reading acuity, reading speeds decreased with these aids compared to unaided condition, which could affect reading efficiency.

Keywords

Low-vision aids Persian MNREAD chart reading performance visual impairment visual rehabilitation

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References

Beckmann

P. J.

Legge

G. E.

(1996). Psychophysics of reading—XIV. The page navigation problem in using magnifiers. Vision Research, 36(22), 3723–3733. https://doi.org/10.1016/0042-6989(96)00084-3

Binns

A. M.

Bunce

Dickinson

Harper

Tudor-Edwards

Woodhouse

Linck

Suttie

Jackson

Lindsay

Wolffsohn

(2012). How effective is low vision service provision? A systematic review. Survey of Ophthalmology, 57(1), 34–65. https://doi.org/10.1016/j.survophthal.2011.06.006

Bowers

A. R.

(2000). Eye movements and reading with plus-lens magnifiers. Optometry and Vision Science, 77(1), 25–33. https://doi.org/10.1097/00006324-200001000-00010

Calabrèse

Owsley

McGwin

Legge

G. E.

(2016). Development of a reading accessibility index using the MNREAD acuity chart. Journal of the American Medical Association Ophthalmology, 134(4), 398–405. https://doi.org/10.1001/jamophthalmol.2015.6097

Chan

Friedman

D. S.

Bradley

Massof

(2018). Estimates of incidence and prevalence of visual impairment, low vision, and blindness in the United States. Journal of the American Medical Association Ophthalmology, 136(1), 12–19. https://doi.org/10.1001/jamophthalmol.2017.4655

Cohen

J. M.

Waiss

(1991). Reading speed through different equivalent power low vision devices with identical field of view. Optometry and Vision Science, 68(10), 795–797.

Culham

L. E.

Chabra

Rubin

G. S.

(2004). Clinical performance of electronic, head-mounted, low-vision devices. Ophthalmic and Physiological Optics, 24(4), 281–290. https://doi.org/10.1111/j.1475-1313.2004.00193.x

Cunningham

E. T.

(2001). World blindness: No end in sight. British Journal of Ophthalmolology, 85(3), 253–254. https://doi.org/10.1136/bjo.85.3.253

Da Silva

P. B.

Leal

A. S.

Ferraz

N. N

. (2022). Usability of smartphone apps as reading aids for low vision patients. Disability and Rehabilitation: Assistive Technology, 17(7), 848–852. https://doi.org/10.1080/17483107.2020.1820086

10.

Den Brinker

Bruggeman

. (1996). Visual requirements for reading: The importance of a large field of view in reading with a magnifier. Journal of Videology, 1, 27–38.

11.

Dick

W. E.

(2017). Usability of enlargement methods: How enlargement method influences the amount of scrolling actions needed to read publications. International Conference on Applied Human Factors and Ergonomics, 24, 271–281.

12.

Elham

Jafarzadepur

(2020). Development and validation of the Persian version of the MNREAD Acuity Chart. Journal of Current Ophthalmology, 32(3), 274–280. https://doi.org/10.4103/JOCO.JOCO_80_20

13.

Giacomelli

Virgili

Giansanti

Sato

Cappello

Cruciani

Varano

Menchini

(2013). Clinical and microperimetric predictors of reading speed in low vision patients: A structural equation modeling approach. Investigative Ophthalmology & Visual Science, 54(6), 4403–4408. https://doi.org/10.1167/iovs.12-10734

14.

Haji

S. A.

Sambhav

Grover

Chalam

K. V.

(2014). Evaluation of the iPad as a low vision aid for improving reading ability. Clinical Ophthalmology, 19, 17–20. https://doi.org/10.2147/OPTH.S73193

15.

Hallett

E. C.

Dick

Jewett

K. P.

(2017). How screen magnification with and without word-wrapping affects the user experience of adults with low vision. International Conference on Applied Human Factors and Ergonomics, 24, 665–674.

16.

Hindmarsh

G. P.

Black

A. A.

White

S. L.

Hopkins

Wood

J. M.

(2021). Eye movement patterns and reading ability in children. Ophthalmic and Physiological Optics, 41(5), 1134–1143. https://doi.org/10.1111/opo.12854

17.

Kerr

N. M.

Chew

S. S.

Eady

E. K.

Gamble

G. D.

Danesh-Meyer

H. V.

(2010). Diagnostic accuracy of confrontation visual field tests. Neurology, 74(15), 1184–1190. https://doi.org/10.1212/WNL.0b013e3181d90017

18.

Latham

(2018). Benefits of low vision aids to reading accessibility. Vision Research, 153, 47–52. https://doi.org/10.1016/j.visres.2018.09.009

19.

Latham

Tabrett

D. R.

(2012). Guidelines for predicting performance with low vision aids. Optometry and Vision Science, 89(9), 1316–1326. https://doi.org/10.1097/OPX.0b013e31825bff1c

20.

Lawton

(2002). Figure/ground and left-right movement discrimination developing when child is learning to read. Journal of Vision, 232(7). https://doi.org/10.1167/2.7.32

21.

Leat

S. J.

Woodhouse

J. M.

(1993). Reading performance with low vision aids: Relationship with contrast sensitivity. Ophthalmic and Physiological Optics, 13(1), 9–16. https://doi.org/10.1111/j.1475-1313.1993.tb00420.x

22.

Lorenzini

M. C.

Wittich

(2020). Factors related to the use of magnifying low vision aids: A scoping review. Disability and Rehabilitation, 42(24), 3525–3537. https://doi.org/10.1080/09638288.2019.1593519

23.

Manduchi

Heo

Chung

S. T.

(2024). Eye movement analysis for low vision readers using a full screen magnifier. Investigative Ophthalmology & Visual Science, 65(7), Article 1117.

24.

Nguyen

N. X.

Weismann

Trauzettel-Klosinski

(2009). Improvement of reading speed after providing of low vision aids in patients with age-related macular degeneration. Acta Ophthalmologica, 87(8), 849–853. https://doi.org/10.1111/j.1755-3768.2008.01423.x

25.

Sharp

E. Y.

(1972). The relationship of visual closure to speechreading. Exceptional Children, 38(9), 729–734. https://doi.org/10.1177/001440297203800907

26.

Varma

Vajaranant

T. S.

Burkemper

Torres

Hsu

Choudhury

McKean-Cowdin

(2016). Visual impair, ment and blindness in adults in the United States: Demographic and geographic variations from 2015 to 2050. Journal of the American Medical Association Ophthalmology, 134(7), 802–809. https://doi.org/10.1001/jamophthalmol.2016.1284

27.

Virgili

Acosta

Bentley

S. A.

Giacomelli

Allcock

Evans

J. R.

(2018). Reading aids for adults with low vision. Cochrane Database of Systematic Reviews, 2018, Article CD003303. https://doi.org/10.1002/14651858.CD003303.pub4

28.

Xiong

Y. Z.

Calabrese

Cheong

A. M.

Legge

G. E.

(2018). Reading acuity as a predictor of low-vision reading performance. Investigative Ophthalmology & Visual Science, 59(12), 4798–4803. https://doi.org/10.1167/iovs.18-24716

29.

Yeo

J. H.

Bae

S. H.

Lee

S. H.

Kim

K. W.

Moon

N. J.

(2022). Clinical performance of a smartphone-based low vision aid. Scientific Reports, 12(1), Article 10752. https://doi.org/10.1038/s41598-022-14489-z