Purpose: To date, the topic of amblyopic changes remains controversial. Therefore, a systematic review and meta-analysis were carried out to evaluate choroidal changes in unilateral amblyopia.
Methods: Major literature databases were searched for amblyopia-relevant studies. Using enhanced depth imaging optical coherence tomography (EDI-OCT), the primary outcome parameters examined were subfoveal choroidal thickness (SFCT) and different choroidal thickness (CT) positions. Efficacy estimates were evaluated by weighted mean difference (WMD) and 95% confidence interval (CI) for choroidal-associated changes. We performed subgroup analysis and metaregression analysis to examine potential sources of heterogeneity.
Results: Eleven cross-sectional studies that included a total of 768 participants were identified. The amblyopic eye SFCT was thicker than that of the fellow and control (normal) eyes (WMD = 49.24, 95% CI of 30.22 to 68.27, < 0.001; WMD = 54.51, 95% CI of 32.17 to 76.85, < 0.001). There were no differences between the fellow and control eyes (WMD = 13.81, 95% CI of 1.16 to 28.77, = 0.071). Subgroup and metaregression analyses indicated that the OCT type was the main source of heterogeneity.
Conclusions: The CT in the amblyopic eyes was thicker than that in the fellow and control eyes.
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| http://dx.doi.org/10.1155/2017/2915261 | DOI Listing |
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