Central retinal artery haemodynamic changes after retinal detachment

Objective:To investigate the changes in the blood flow of central retinal artery after retinal detachment.Methods:Central retinal artery (CRA) blood flow velocities were studied with colour Doppler imaging in 60 patients with unilateral rhegmatogenous retinal detachment,the fellow eyes served as controls.The measured paraments included peak systolic velocity (Vmax),end diastolic velocity(Vmin),average blood flow velocity(Vtax) and pulsatility index(PI).Results:There were significant reduction of Vmax and PI of CRA in the retinal detachment eyes than in the controls,even more in the patients who is over 40 years old or duration of the detachment is more than 6 months.Conclusions:There is reduction in the blood flow velocity of CRA after retinal detachment,and it positively correlated with patients' age and the duration of the detachment.