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Correlation between RT and SVD in normal and patients with SS. The vertical coordinate is the value of RT, and the horizontal coordinate is the value of SVD. (A,B) In the SS group, SVD was positively correlated with full RT at ON region (r = 0.459, p = 0.024). SS, Sjogren's syndrome; RT, retinal thickness; SVD, superficial vessel density; ON, outer nasal.
