原发性开角型青光眼视盘及视网膜血流的研究

目的探讨原发性开角型青光眼患者和正常人视盘及其周边视网膜血液供应是否存在差异.方法本研究采用了一种新型共焦扫描激光多普勒血流仪--海德堡视网膜血流仪(heidelbergretina

Studies on optic disk and retinal blood flow in primary open-angle glaucomapatients

Objective To investigate the differences of optic disk and retinal blood supply in primary open angle glaucoma(POAG) and normal eyes.Methods A new confocal scanning laser Doppler flowmeter Heidelberg Retina Flowmetry(HRF) was used to measure 38 POAG patients (including 5 normal tension glaucoma patients , 72 eyes) and 31 normal control subjects (60 eyes) . Volume(vol) , flow(flw) , and velocity(vel) in optic disk vessels , temporal rim , nasal rim , temporal juxtapapillary retina , nasal juxtapapillary retina and lamia cribrosa were analyzed . Results The POAG group had significantly decreased blood volume , flow , and velocity in optic disk vessels and lamia cribrosa and in blood volume in temporal rim , nasal rim , temporal juxtapapillary retina , nasal juxtapapillary retina (P<0.01) . No difference was found between glaucomatous and control subjects in the blood flow and velocity measurements in temporal rim , nasal rim , temporal juxtapapillary retina and nasal juxtapapillary retina (P>0.05) .Conclusion The POAG patients tend to have lower blood supply than control subjects.