Santos L, Capeans C, Gonzalez F, Lorenzo J, Codesido J, Salorio M S
Department of Ophthalmology, School of Medicine, Santiago de Compostela, Spain.
Graefes Arch Clin Exp Ophthalmol. 1994 Nov;232(11):666-9. doi: 10.1007/BF00171381.
It has been reported that scleral buckling reduces the blood flow velocity in retinal vessels. Blood flow changes may also appear in other ocular and extraocular vessels. This study describes the blood flow velocity changes in the ophthalmic artery (OA) after performing this procedure.
The study was carried out in 12 patients (12 eyes) with rhegmatogenous retinal detachment. Color Doppler imaging was used to measure the peak and average blood flow velocity in the OA. Measurements were taken 1 day before and 2 days after scleral buckling surgery was performed. Intraocular pressure (IOP) was measured prior to each ultrasound study.
We found that statistically significant reductions in the peak flow velocity (33%) and average flow velocity (31%) occur in the OA after scleral buckling. All patients showed an increase in IOP after surgery.
Buckling surgery reduces the blood flow velocity in the OA. Since the OA is the origin of the arterial branches that supply blood to the eye, our results suggest that scleral buckling may decrease not only retinal but also choroidal blood perfusion. Some extraocular structures might also be affected.
据报道，巩膜扣带术会降低视网膜血管中的血流速度。血流变化也可能出现在其他眼内和眼外血管中。本研究描述了该手术后眼动脉（OA）的血流速度变化。
对12例（12只眼）孔源性视网膜脱离患者进行了研究。使用彩色多普勒成像测量眼动脉的峰值和平均血流速度。在巩膜扣带手术前1天和手术后2天进行测量。在每次超声检查前测量眼压（IOP）。
我们发现，巩膜扣带术后眼动脉的峰值流速（33%）和平均流速（31%）出现了具有统计学意义的降低。所有患者术后眼压均升高。
扣带手术降低了眼动脉的血流速度。由于眼动脉是为眼睛供血的动脉分支的起源，我们的结果表明，巩膜扣带术可能不仅会减少视网膜的血液灌注，还会减少脉络膜的血液灌注。一些眼外结构也可能受到影响。
