Follow-up observation of ocular hemodynamics after scleral buckling with color Doppler flow imaging

Objective To observe the hemodynamic changes in the eyes of patients with rhegmatogenous retinal detachment after the scleral buckling procedure.Methods Siemens Sequia 512 color Doppler imaging was used to measure the velocity in the ophthalmic artery(OA),central retinal artery(CRA)and short posterior ciliary artery(SPCA)of both eyes in 31 pa- tients with unilateral rhegmatogenous retinal detachments after the scleral buckle repair.Peak systolic velocity(V_(max)),end- diastolic velocity(V_(min))and resistance index(RI)of these arteries were measured.Contralateral eyes served as controls.Re- sults No significant difference was found in above indexes of the group of one to two years after surgery between binocular (P0.05).V_(max)and V_(min)of CRA and SPCA from the group of three to four years after surgery showed significant reduction (P0.05),but there were no significant difference in RI and indexes of OA between bilateral eyes(P0.05).Ocular is- chemic syndrome was not found and visual improvement was achieved.Conclusion Retinal and choroidal blood flow do not change from one to two years after scleral buckling procedure,but there is a decreasing tendency from one to two years after surgery.Scleral buckling procedure can cause subclinical disturbance of the long-term choroidal circulation.