Occlusion Outcomes in Unilateral Amblyopia Types: A Longitudinal and Interventional Study in Children from the Marrakech-Safi Region

Objective: To investigate if the type of unilateral amblyopia can impact the improvement of visual acuity in amblyopic eyes during a longitudinal interventional study involving standard occlusion therapy in children. Methods: A longitudinal and interventional study of 91 children, aged 3–9 years (6....

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Main Authors: Mustapha Jaouhari, Chaimae El Harrak, Farida Bentayeb, Youssef El Merabet
Format: Article
Language:English
Published: White Rose University Press 2024-12-01
Series:British and Irish Orthoptic Journal
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Online Access:https://account.bioj-online.com/index.php/wr-j-bioj/article/view/382
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author Mustapha Jaouhari
Chaimae El Harrak
Farida Bentayeb
Youssef El Merabet
author_facet Mustapha Jaouhari
Chaimae El Harrak
Farida Bentayeb
Youssef El Merabet
author_sort Mustapha Jaouhari
collection DOAJ
description Objective: To investigate if the type of unilateral amblyopia can impact the improvement of visual acuity in amblyopic eyes during a longitudinal interventional study involving standard occlusion therapy in children. Methods: A longitudinal and interventional study of 91 children, aged 3–9 years (6.12 ± 1.879) with amblyopia was undertaken. Amblyopia was unilateral and caused by either strabismus, anisometropia, or both. Amblyopia was divided into three levels of severity mild, moderate, and severe. Children underwent amblyopia treatment with standard occlusion therapy and were followed monthly, for eight visits. Results: A significant improvement in visual acuity was observed in all assessment visits across the three types of amblyopia, with a mean improvement of (0.30 ± 0.184) LogMAR. Specifically, anisometropic amblyopia with (0.28 ± 0.18) LogMAR, strabismic amblyopia (0.31 ± 0.18) LogMAR, and mixed amblyopia (0.31 ± 0.18) LogMAR. No significant differences were found between the improvement in visual acuity during the eight control visits and the types of amblyopia (r = 0.174, p = 0.182). However, a significant correlation was observed within all groups in the mean improvement in visual acuity and the severity level (r = 0.712, p = 0.034). Conclusion: Amblyopia types do not appear to significantly affect the improvement in visual acuity; however, the initial severity of amblyopia may be a key factor influencing the degree of visual recovery achieved with occlusion therapy.
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spelling doaj-art-d222fb0e68d24a3b80a991d79982d5522025-01-08T07:53:43ZengWhite Rose University PressBritish and Irish Orthoptic Journal2516-35902024-12-0120264–270264–27010.22599/bioj.382382Occlusion Outcomes in Unilateral Amblyopia Types: A Longitudinal and Interventional Study in Children from the Marrakech-Safi RegionMustapha Jaouhari0https://orcid.org/0009-0006-0819-5182Chaimae El Harrak1https://orcid.org/0009-0008-4632-8622Farida Bentayeb2https://orcid.org/0000-0003-2773-8016Youssef El Merabet3https://orcid.org/0000-0003-0771-4674Laboratory of Electronic Systems, Mechanical, and Energy Information ProcessingLaboratory of Electronic Systems, Mechanical, and Energy Information ProcessingLaboratory of high energy physics, modeling, and simulationLaboratory of Electronic Systems, Mechanical, and Energy Information ProcessingObjective: To investigate if the type of unilateral amblyopia can impact the improvement of visual acuity in amblyopic eyes during a longitudinal interventional study involving standard occlusion therapy in children. Methods: A longitudinal and interventional study of 91 children, aged 3–9 years (6.12 ± 1.879) with amblyopia was undertaken. Amblyopia was unilateral and caused by either strabismus, anisometropia, or both. Amblyopia was divided into three levels of severity mild, moderate, and severe. Children underwent amblyopia treatment with standard occlusion therapy and were followed monthly, for eight visits. Results: A significant improvement in visual acuity was observed in all assessment visits across the three types of amblyopia, with a mean improvement of (0.30 ± 0.184) LogMAR. Specifically, anisometropic amblyopia with (0.28 ± 0.18) LogMAR, strabismic amblyopia (0.31 ± 0.18) LogMAR, and mixed amblyopia (0.31 ± 0.18) LogMAR. No significant differences were found between the improvement in visual acuity during the eight control visits and the types of amblyopia (r = 0.174, p = 0.182). However, a significant correlation was observed within all groups in the mean improvement in visual acuity and the severity level (r = 0.712, p = 0.034). Conclusion: Amblyopia types do not appear to significantly affect the improvement in visual acuity; however, the initial severity of amblyopia may be a key factor influencing the degree of visual recovery achieved with occlusion therapy.https://account.bioj-online.com/index.php/wr-j-bioj/article/view/382amblyopiaanisometropiastrabismusocclusionvisual recoverychildeye patchvisual acuity
spellingShingle Mustapha Jaouhari
Chaimae El Harrak
Farida Bentayeb
Youssef El Merabet
Occlusion Outcomes in Unilateral Amblyopia Types: A Longitudinal and Interventional Study in Children from the Marrakech-Safi Region
British and Irish Orthoptic Journal
amblyopia
anisometropia
strabismus
occlusion
visual recovery
child
eye patch
visual acuity
title Occlusion Outcomes in Unilateral Amblyopia Types: A Longitudinal and Interventional Study in Children from the Marrakech-Safi Region
title_full Occlusion Outcomes in Unilateral Amblyopia Types: A Longitudinal and Interventional Study in Children from the Marrakech-Safi Region
title_fullStr Occlusion Outcomes in Unilateral Amblyopia Types: A Longitudinal and Interventional Study in Children from the Marrakech-Safi Region
title_full_unstemmed Occlusion Outcomes in Unilateral Amblyopia Types: A Longitudinal and Interventional Study in Children from the Marrakech-Safi Region
title_short Occlusion Outcomes in Unilateral Amblyopia Types: A Longitudinal and Interventional Study in Children from the Marrakech-Safi Region
title_sort occlusion outcomes in unilateral amblyopia types a longitudinal and interventional study in children from the marrakech safi region
topic amblyopia
anisometropia
strabismus
occlusion
visual recovery
child
eye patch
visual acuity
url https://account.bioj-online.com/index.php/wr-j-bioj/article/view/382
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AT faridabentayeb occlusionoutcomesinunilateralamblyopiatypesalongitudinalandinterventionalstudyinchildrenfromthemarrakechsafiregion
AT youssefelmerabet occlusionoutcomesinunilateralamblyopiatypesalongitudinalandinterventionalstudyinchildrenfromthemarrakechsafiregion