Background:The aim was to determine the relationship between bulbar conjunctival microcirculation and retinal microcirculation in a healthy population.Method:A functional slit-lamp biomicroscope(FSLB)was used to measu...Background:The aim was to determine the relationship between bulbar conjunctival microcirculation and retinal microcirculation in a healthy population.Method:A functional slit-lamp biomicroscope(FSLB)was used to measure blood flow velocity(BFV)and blood flow rate(BFR)in the conjunctiva while a retinal function imager(RFI)was used to measure macular BFV and BFR in the retina.One eye of each subject of 58 self-reported healthy subjects was imaged in the same session on the same day.Results:The mean BFV in the venules of the conjunctiva was 0.49±0.13 mm/s,which was significantly slower than that in the retinal arterioles(3.71±0.78 mm/s,P<0.001)and retinal venules(2.98±0.58 mm/s,P<0.001).The BFR in the conjunctiva(0.09 nl/s)was also significantly lower than that in the retina(arterioles=0.81 nl/s,venules=0.68 nl/s,all P<0.001).The BFVs and BFRs were not related between the conjunctiva and retina(r ranged from−0.17 to−0.05,all P>0.05).Conclusion:The microcirculation in the retina appeared to be different from that in the conjunctiva.展开更多
基金Supported by NIH Center Grant P30 EY014801a grant from Research to Prevent Blindness(RPB).
文摘Background:The aim was to determine the relationship between bulbar conjunctival microcirculation and retinal microcirculation in a healthy population.Method:A functional slit-lamp biomicroscope(FSLB)was used to measure blood flow velocity(BFV)and blood flow rate(BFR)in the conjunctiva while a retinal function imager(RFI)was used to measure macular BFV and BFR in the retina.One eye of each subject of 58 self-reported healthy subjects was imaged in the same session on the same day.Results:The mean BFV in the venules of the conjunctiva was 0.49±0.13 mm/s,which was significantly slower than that in the retinal arterioles(3.71±0.78 mm/s,P<0.001)and retinal venules(2.98±0.58 mm/s,P<0.001).The BFR in the conjunctiva(0.09 nl/s)was also significantly lower than that in the retina(arterioles=0.81 nl/s,venules=0.68 nl/s,all P<0.001).The BFVs and BFRs were not related between the conjunctiva and retina(r ranged from−0.17 to−0.05,all P>0.05).Conclusion:The microcirculation in the retina appeared to be different from that in the conjunctiva.