CCL22 and hydrops fetalis: The measurements on optical coherence tomography showed that CCL22/CXCL10 was correlated positively with the greatest linear diameter (GLD) of the lesion (ρ = 0.579, P = 0.019) and the maximal neurosensory thickness (MNT) (ρ = 0.509, P = 0.044), but was not correlated with the presence of subretinal fluid (SRF), subretinal hemorrhage (SRH), hyperreflective foci (HF), or pigment epithelium detachment (PED), with P values of 0.093, 0.562, 0.174, and 0.320, respectively(Fig. 6g–i).