[Ocular blood flow and characteristics of retinal detachment]

To determine if ocular blood flow (OBF) changes in retinal detachment (RD) are related with its characteristics (extension, macular involvement, PVR or duration).

60 patients with unilateral rhegmatogenous RD and 20 <> patients were selected. Color Doppler Ultrasound was used to measure OBF velocities in the ophthalmic artery (OA), central retinal artery (CRA) and vein (CRV) and posterior ciliary arteries (PCA) of both eyes of each patient. The IOP and RD characteristics were considered. In each case the paired Student's T test (OBF) and Wilcoxon test (IOP) were used for the statistical analysis (p<5%).

Peak systolic (PS) and end diastolic (ED) velocities of OA, PS of CRA and PS and ED of PCA were decreased in the RD eyes compared to the normal ones (p<0.05). The PS and ED rates of OA and PS of CRA were also decreased (p<0.05) in the other eyes compared to the normal ones. Both the decrease in velocity and in the IOP were related with 2 or more quadrants of RD (p<0.05), macula detachment (p<0.05), PVR >/=C(2) (p<0.05) and duration of >/=15 days (p<0.05).

RD correlates with decreased ocular blood flow velocities and IOP in both the RD as well as in the other eye. The worse the characteristics of the RD, the lower the velocities and the IOP