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Published in: Graefe's Archive for Clinical and Experimental Ophthalmology 6/2017

01-06-2017 | Pediatrics

Functional visual acuity in patients with successfully treated amblyopia: a pilot study

Authors: Sujin Hoshi, Takahiro Hiraoka, Junko Kotsuka, Yumiko Sato, Shinya Izumida, Atsuko Kato, Yuta Ueno, Shinichi Fukuda, Tetsuro Oshika

Published in: Graefe's Archive for Clinical and Experimental Ophthalmology | Issue 6/2017

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Abstract

Purpose

The aim of this study was to use conventional visual acuity measurements to quantify the functional visual acuity (FVA) in eyes with successfully treated amblyopia, and to compare the findings with those for contralateral normal eyes.

Methods

Nineteen patients (7 boys, 12 girls; age 7.5 ± 2.2 years) with successfully treated unilateral amblyopia and the same conventional decimal visual acuity in both eyes (better than 1.0) were enrolled. FVA, the visual maintenance ratio (VMR), maximum and minimum visual acuity, and the average response time were recorded for both eyes of all patients using an FVA measurement system. The differences in FVA values between eyes were analyzed.

Results

The mean LogMAR FVA scores, VMR (p < 0.001 for both), and the LogMAR maximum (p < 0.005) and minimum visual acuity (p < 0.001) were significantly poorer for the eyes with treated amblyopia than for the contralateral normal eyes. There was no significant difference in the average response time.

Conclusions

Our results indicate that FVA and VMR were poorer for eyes with treated amblyopia than for normal eyes, even though the treatment for amblyopia was considered successful on the basis of conventional visual acuity measurements. These results suggest that visual function is impaired in eyes with amblyopia, regardless of treatment success, and that FVA measurements can provide highly valuable diagnosis and treatment information that is not readily provided by conventional visual acuity measurements.
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Metadata
Title
Functional visual acuity in patients with successfully treated amblyopia: a pilot study
Authors
Sujin Hoshi
Takahiro Hiraoka
Junko Kotsuka
Yumiko Sato
Shinya Izumida
Atsuko Kato
Yuta Ueno
Shinichi Fukuda
Tetsuro Oshika
Publication date
01-06-2017
Publisher
Springer Berlin Heidelberg
Published in
Graefe's Archive for Clinical and Experimental Ophthalmology / Issue 6/2017
Print ISSN: 0721-832X
Electronic ISSN: 1435-702X
DOI
https://doi.org/10.1007/s00417-017-3623-z

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