The burden of pure anisometropic amblyopia: a cross-sectional study on 2800 Iranians

Akbarzadeh, Siamak; Vahabi, Reihaneh; Bazzazi, Nooshin; Roshanaei, Ghodratollah; Heydarian, Samira; Fouladi, Daniel Fadaei

doi:10.1007/s10792-017-0784-z

Cited by 3 publications

(2 citation statements)

References 26 publications

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“…[ 1 ] Recently, there is no consensus about the threshold for anisometropia, one or more diopter (D) interocular difference is being accepted by some authors. [ 2 3 ] The lack of a complete cure for the disease after the childhood period is the main reason for studies to investigate the pathophysiology of amblyopia.…”

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confidence: 99%

How does anisometropia affect the choroidal vascularity index?

Cevher

Üçer²,

Şahı̇n³

2022

Indian J Ophthalmol

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Purpose: To investigate the choroidal vascularity index (CVI) and morphological features of the choroid in anisometropic amblyopia. Methods: In this prospective cross-sectional study, 39 patients with unilateral anisometropic amblyopic patients and 33 eyes of 33 healthy control participants were involved. These participants were examined in terms of axial length (AL), spherical equivalent (SE), central macular thickness (CMT), choroidal thickness (CT), total choroidal area (TCA), luminal area (LA), stromal area (SA), LA/SA ratio, and CVI. All parameters were compared between amblyopic eyes, healthy fellow eyes, and healthy control eyes. The Shapiro–Wilk tests, Chi-square test, the paired t -test, Wilcoxon signed-rank test, Mann–Whitney U test, Kruskal–Wallis test, and Pearson/Spearman correlation tests were used. Results: In the hyperopic patients; SE, subfoveal CT, nasal CT, temporal CT, TCA, LA, SA, and CMT were greater in amblyopic eyes than in healthy fellow eyes and control eyes ( P < 0.001, P < 0.001, P < 0.001, P < 0.001, P < 0.001, P < 0.001, and P < 0.001, respectively), and CVI, LA/SA ratio, and AL were smaller in amblyopic eyes than in healthy fellow eyes and control eyes ([ P < 0.001, P = 0.006], P < 0.001, and P < 0.001, respectively). In the myopic patients, subfoveal CT, nasal CT, temporal CT, TCA, LA, SA values were statistically smaller in amblyopic eyes than in healthy eyes and control eyes ([ P < 0.001, P = 0.002), [ P = 0.004, P = 0.012], [ P = 0.012, P = 0.032], [ P < 0.001, P = 0.013], [ P < 0.001, P = 0.024], and [ P < 0.001, P = 0.047], respectively). The differences in the AL and choroidal parameters were due to myopia and hyperopia. Conclusion: The choroidal structural parameters of the amblyopic eyes were different from that of the healthy eyes.

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mentioning

confidence: 99%

How does anisometropia affect the choroidal vascularity index?

Cevher

Üçer²,

Şahı̇n³

2022

Indian J Ophthalmol

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“…Although the reporting countries varied between Asian, European, South American and Middle Eastern, the results did not very much. However, other Asian countries like Malaysia [12], Iran [13,14], and India [15] ,which reported the highest prevalence rates in tribal children, have substantially higher rates than reported elsewhere.…”

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Prevalence of Amblyopia in 2018

Selim

2019

Asp Biomed Clin Case Rep

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Purpose: Amblyopia is a leading cause of preventable visual impairment which can have consequences on psychosocial wellbeing. This study aims to find out the prevalence of amblyopia reported in 2018. Methods: Pubmed was searched for amblyopia prevalence. Relevant articles were reviewed. Results: Amblyopia prevalence was reported as high as 17.2 of children screened in one study. Discussions: Prevalence rate of amblyopia can vary significantly between countries as well as certain communities in the same country.

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Evaluation of Aniseikonia in Patients with Successfully Treated Anisometropic Amblyopia Using Spatial Aniseikonia Test

Takigawa

Hirota

Nakagawa

et al. 2023

JCM

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Anisometropic amblyopia is decreased visual acuity in one eye, and treatment consists of wearing complete corrective spectacles. Aniseikonia occurs with complete correction of anisometropia using spectacles. Aniseikonia has been ignored when treating pediatric anisometropic amblyopia because of the prevailing belief that anisometropic symptoms are suppressed by adaptation. However, the conventional direct comparison method for evaluating aniseikonia significantly underestimates the degree of aniseikonia. This study investigated whether the adaptation occurs due to long-term anisometropic amblyopia treatment in patients who have had successful amblyopia treatment using a spatial aniseikonia test with high accuracy and repeatability compared with the conventional direct comparison method. The amount of aniseikonia was not significantly different between the patients with successful amblyopia treatment and individuals with anisometropia without a history of amblyopia. In both groups, the aniseikonia per 1.00 D of anisometropia and the aniseikonia per 1.00 mm of aniso-axial length were comparable. The repeatability of the amount of aniseikonia using the spatial aniseikonia test did not differ significantly between the two groups, indicating a high degree of agreement. These findings suggest that aniseikonia is not adapted to amblyopia treatment and that aniseikonia increases as the difference between spherical equivalent and axial length increases.

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The burden of pure anisometropic amblyopia: a cross-sectional study on 2800 Iranians

Abstract: Pure anisometropic amblyopia is a common finding in Caucasians seeking eye care, particularly when anisometropia is of spherical hyperopic subtype.

Cited by 3 publications

References 26 publications

How does anisometropia affect the choroidal vascularity index?

How does anisometropia affect the choroidal vascularity index?

Prevalence of Amblyopia in 2018

Evaluation of Aniseikonia in Patients with Successfully Treated Anisometropic Amblyopia Using Spatial Aniseikonia Test

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