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Comparison of reading speed, phonological decoding, and comprehension in the group of children with anisometropic amblyopia and control group

Buczkowska H., Miskowiak B.

Optica Applicata

2017

Vol. 47, nr 3

351--362

The purpose of this study was to compare the reading speed, phonological decoding, and comprehension between a group of children with anisometropic amblyopia (amblyopic group) (N = 21) and a group without visual problems (control group) (N = 37). Mean (± SD) age in amblyopic group was 10.3 ± 1.7 and 10.7 ± 1.3 years in control group (p = 0.130). The reading speed measurement was conducted with the use of Konopnicki test, phonological decoding and comprehension using the Prolexia tests – string words test and string sentences test. All reading tests were made binocularly with spectacle correction (subjective refraction result). The median (range) of the Konopnicki test in the amblyopic group was 62 words per minute (from 32 to 108), while 92 words per minute (from 51 to 125) in the control group (p < 0.0001). The mean (± SD) of the string words test for amblyopic group was 3 min and 55 s (± 1.68), while in control group it was 2 min and 55 s (± 0.95) (p < 0.0001). Median (range) of the string sentences test for amblyopic group was 4.18 min (from 1.52 to 10.32) and for control group was 2.50 min (from 1.30 to 5.12) (p < 0.0001). This study indicates that children with anisometropic amblyopia achieve significantly worse results in reading speed, phonological decoding, and comprehension.

Readability of Characters on Mobile Phone Liquid Crystal Displays

Hasegawa S., Fujikake K., Omori M., Miyao M.

International Journal of Occupational Safety and Ergonomics

2008

Vol. 14, No. 3

293--304

Subject performance in reading characters on mobile phone liquid crystal displays was researched by using (a) English sentences with 3 or 4 different sizes of characters on 2 types of displays with different resolutions (n = 23; age = 31.0 ± 6.0 years), (b) Japanese characters in 3 different sizes and 2 types of font (n = 98; age = 44.5 ± 18.5 years), and (c) Japanese characters vertically enlarged 1–4 times (n = 120; age = 46.9 ± 18.6 years). Subjective evaluation, reading speed, number of reading errors, and viewing distance were recorded. Readability was higher with higher resolution displays, and with Gothic than with Mincho font in Japanese. Young subjects shortened the viewing distance as characters became smaller, whereas elderly subjects increased the viewing distance irrespective of the size of characters. Characters of 3–5 mm are appropriate for the young but inadequate for the elderly. Readability of Japanese characters improved when they were vertically enlarged to approximately twice the width.