Serous retinal detachment in preeclampsia and malignant hypertension.

Choroidal circulation may be affected earlier than retinal circulation by elevated blood pressure, presumably because of anatomical differences and autoregulatory mechanisms in the retinal vasculature. Serous retinal detachment with hypertensive choroidopathy presented with choroidal thickening that decreased after resolution, but the residual flow defects observed in the choriocapillaris on OCTA confirmed the long-hypothesized notion that ischemia is a mechanism underlying hypertensive choroidopathy.