PURPOSE: To study and compare the correlation among @entity3193 , and retrobulbar vascular parameters in healthy subjects, @entity726 suspects, and @entity1538 ( @entity1538 ) @entity1 . DESIGN: Prospective observational clinical study. METHODS: The study included one randomly selected eye from 21 normal subjects, 30 @entity726 suspects based on optic disc appearance, and 22 @entity1538 @entity1 . The @entity450 ( @entity450 ), a measure of choroidal blood flow, was assessed using ocular blood flow analyzer whereas parapapillary blood flow and blood velocity of retrobulbar blood vessels were measured using scanning laser Doppler flowmetry and color Doppler imaging, respectively. All vascular parameters along with blood pressure and intraocular pressure measurements were obtained within a 2-hour period. Univariate regression analyses were used to evaluate the correlation of @entity450 values with parapapillary blood flow values, retrobulbar blood flow velocities, and resistive index, which represents vascular resistance, in each group. Two multiple linear regression models were created based on results of univariate analyses and included @entity450 , mean parapapillary blood flow, age, and mean ocular perfusion pressure; and @entity450 , temporal short posterior ciliary artery resistive index, age, and mean ocular perfusion pressure. RESULTS: @entity450 was significantly associated with parapapillary blood flow (r2 = 0.54; P < .001, positive correlation) and temporal short posterior ciliary artery resistive index (r2 = 0.39; P < .001, negative correlation) in normal subjects. Results were consistent when corrected for age, intraocular pressure, and blood pressure parameters. @entity450 values did not correlate with parapapillary blood flow values or temporal short posterior ciliary artery resistive index in @entity726 suspects or @entity1538 @entity1 . CONCLUSION: The relationships of @entity450 with parapapillary blood flow and calculated retrobulbar vascular resistance differs among normal subjects, @entity726 suspects, and @entity1538 @entity1 . This provides further evidence of @entity455 in @entity1538 .

Correlation among XXXX , and retrobulbar vascular parameters in @entity726 .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity455 :: ('MESH:D014652', 'Disease') :: ['vascular dysregulation'] @entity1538 :: ('MESH:D005902', 'Disease') :: ['open-angle glaucoma', 'OAG'] @entity726 :: ('MESH:D005901', 'Disease') :: ['glaucoma'] @entity450 :: ('MESH:D006940', 'Disease') :: ['pulsatile ocular blood flow', 'POBF'] @entity3193 :: ('MESH:D015862', 'Disease') :: ['choroidal, parapapillary']
@entity3193 :: (MESH:D015862,Disease) :: ['choroidal, parapapillary']
