AIM: We aimed to investigate the retrobulbar blood circulation using Colour Doppler Imaging (CDI) in type 1 @entity6 @entity1 and adolescents who had no @entity6 and to compare the results with their healthy peers. METHODS: Forty-nine @entity1 with @entity6 with no @entity989 on fundoscopic examination were included in the study. Forty-nine healthy @entity1 were defined as the control group. Central retinal artery (CRA), @entity432 ( @entity432 ) and posterior ciliary artery (PCA) were examined with Doppler US bilaterally. Peak systolic velocity (PSV), end diastolic velocity (EDV) and resistive indices (RI) for each artery were recorded. RESULTS: Blood flow velocity of the @entity432 was significantly different in @entity6 @entity1 (p<0.05). EDV of the @entity432 was significantly higher (p=0.011) and RI was significantly lower (p=0.027) in @entity1 with @entity6 duration of longer than 5 years. RI of the CRA was significantly higher in @entity1 who had higher microalbuminuria levels (p=0.016). CONCLUSION: EDV of the @entity432 increases and RI of the @entity432 decreases in @entity6 duration longer 5 years. Raised AER increases RI of the CRA. These findings may be the initial changes in the arterial circulation before @entity2003 develops.

Doppler ultrasonography imaging of hemodynamic alteration of retrobulbar circulation in type 1 @entity6 XXXX and adolescents without @entity989 .

@entity1 :: ('9606', 'Species') :: ['children', 'patients'] @entity2003 :: ('MESH:D009127', 'Disease') :: ['vascular rigidity'] @entity6 :: ('MESH:D003920', 'Disease') :: ['type 1 diabetes mellitus', 'diabetic', 'diabetes', 'diabetic retinopathy'] @entity989 :: ('MESH:D012164', 'Disease') :: ['retinopathy'] @entity432 :: ('MESH:D001157', 'Disease') :: ['OA', 'ophthalmic artery']
@entity1 :: (9606,Species) :: ['children']
