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Randomized Controlled Trial
. 2008 Dec;146(6):942-7.
doi: 10.1016/j.ajo.2008.06.022. Epub 2008 Aug 16.

Monocular oral reading performance after amblyopia treatment in children

Michael X Repka  1 , Raymond T Kraker, Roy W Beck, Susan A Cotter, Jonathan M Holmes, Robert W Arnold, William F Astle, Nicholas A Sala, D Robbins Tien; Pediatric Eye Disease Investigator Group
Collaborators, Affiliations
Randomized Controlled Trial

Monocular oral reading performance after amblyopia treatment in children

Michael X Repka et al. Am J Ophthalmol. 2008 Dec.

Abstract

Purpose: To evaluate the monocular oral reading rate, accuracy, fluency, and comprehension in 10-year-old children previously treated for amblyopia.

Design: Prospective, observational case series.

Methods: Seventy-nine children (mean age, 10.3 years) previously treated in a multicenter randomized trial comparing patching and atropine were tested at seven sites using a modification of the Gray Oral Reading Test, Fourth Edition (GORT-4).

Results: The mean visual acuities (VA) in the amblyopic and fellow eyes at the time of the reading assessment were 0.17 logarithm of the minimum angle of resolution (logMAR) units (approximately 20/32) and -0.03 logMAR units (approximately 20/20), respectively. Compared with the sound eye, amblyopic eye performance was worse when reading orally with respect to rate (P < .001), accuracy (P = .03), and fluency (P < .001). Reading comprehension scores were similar with the amblyopic and fellow eyes (P = .45). Similar results were found with respect to original treatment group assignment (atropine or patching). There was a modest correlation between interocular difference (IOD) of VA at age 10 years and IOD in reading rate (r = 0.37; 95% confidence interval [CI], 0.18 to 0.56) and fluency (r = 0.28; 95% CI, 0.08 to 0.49). There was no correlation between the IOD in VA and IOD in accuracy (r = 0.08; 95% CI, -0.14 to 0.30) or comprehension (r = 0.16; 95% CI, -0.05 to 0.37).

Conclusions: The monocular oral reading ability when measured with the GORT-4 was slightly worse when reading with previously treated amblyopic eyes compared with fellow eyes in terms of rate, accuracy, and fluency, but reading comprehension testing was similar.

Trial registration: ClinicalTrials.gov NCT00000170.

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Figures

Figure
Figure. Reading Ability Interocular Difference compared with Visual Acuity Interocular Difference at the Age 10-year Visit
Interocular difference (IOD) of visual acuity is presented in logMAR lines, with minus values representing better acuity in the amblyopic eye and plus values representing better acuity in the fellow eye. Reading ability interocular differences are scaled with values ranging from −15 (better in amblyopic eye) to +15 (better in fellow eye) for rate, accuracy, and comprehension and from −30 to +30 for fluency (sum of rate and accuracy values for each eye) (Top left) IOD in oral reading rate is compared with IOD in visual acuity, (top right) IOD in oral reading accuracy is compared with IOD in visual acuity, (bottom left) IOD in oral reading fluency is compared with IOD in visual acuity and (bottom right) IOD in oral reading comprehension is compared with IOD in visual acuity.
See this image and copyright information in PMC

References

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