Effects of scleral buckling on the retrobulbar haemodynamic changes

Purpose This study was planned to investigate blood flow changes due to scl eral buckling surgery. In addition the effects on these changes of factors related to patient characteristics and operative technique were studied, Methods Central retinal artery (CRA) and ophthalmic artery (OA) blood flow velocities were studied with colour Doppler ultrasonography after scleral b uckling surgery in 25 patients with unilateral rhegmatogenous retinal detac hment. The effects of the patient's age, referral time, aetiological factor s, operative technique, cryotherapy width and buckling distance on the haem odynamic changes were noted. Results Buckling surgery reduces the blood flow velocities in the CRA, but affects OA blood flow less. Encircling is found to be responsible and it is greater in patients with anatomical success. Other factors do not have any significant effect on these changes. Conclusions Good anatomical and functional results can be achieved despite these haemodymanic changes. It must be kept in mind that these changes may cause complications in some patients and the surgery must be minimised.