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To the Editor:
With great interest, we read the article entitled “Features of optical coherence tomography for the diagnosis of Vogt–Koyanagi–Harada disease” by Liu et al.1
However, we have a few observations over which we request the author's comments.
So, in our opinion, the predictive value of OCT for the diagnosis of VKH disease could have been better if retinal pigment epithelium undulation index were included in the study.
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