scholarly journals Effect of atorvastatin on ocular blood flow velocities in patients with diabetic retinopathy

2006 ◽  
Vol 91 (1) ◽  
pp. 69-73 ◽  
Author(s):  
A Ozkiris ◽  
K Erkilic ◽  
A Koc ◽  
S Mistik
Keyword(s):  
Blood Flow ◽  
Diabetic Retinopathy ◽  
Ocular Blood Flow ◽  
Blood Flow Velocities ◽  
Flow Velocities

Influence of various mixtures of breathing gases on ocular blood flow velocities obtained by color Doppler imaging

1998 ◽  
Vol 95 (4) ◽  
pp. 225-228 ◽  
Author(s):  
Frank Schüttauf ◽  
Ulrich Cobet ◽  
Albrecht Klemenz ◽  
Albrecht Krause
Keyword(s):  
Blood Flow ◽  
Color Doppler ◽  
Color Doppler Imaging ◽  
Ocular Blood Flow ◽  
Doppler Imaging ◽  
Blood Flow Velocities ◽  
Flow Velocities

The Assessment of Blood Flow Velocities in Retinal Collaterals in Diabetic Retinopathy

2019 ◽  
Vol 236 (04) ◽  
pp. 530-535
Author(s):  
Gabor Somfai ◽  
Thalmon Campagnoli ◽  
Jing Tian ◽  
Heinrich Gerding ◽  
William Smiddy ◽  
...  
Keyword(s):  
Blood Flow ◽  
Diabetic Retinopathy ◽  
Proliferative Diabetic Retinopathy ◽  
Microvascular Disease ◽  
Retinal Ischemia ◽  
Microvascular Changes ◽  
Significant Difference ◽  
Blood Flow Velocities ◽  
Collateral Vessels ◽  
Flow Velocities

Abstract Purpose Diabetic retinopathy (DR) is a microvascular disease characterized by capillary dropout and resultant retinal ischemia which then leads to retinal vascular remodeling. Our goal was to assess blood flow velocities in retinal collateral vessels in healthy and diabetic subjects with various stages of DR. Methods In our pilot study, we enrolled five eyes of five healthy subjects (H), five eyes of four subjects with diabetes and no retinopathy (DM), three eyes of three subjects with mild non-proliferative diabetic retinopathy (MDR), and five eyes of four subjects with proliferative diabetic retinopathy (PDR). Following routine ophthalmic examination, all subjects were imaged using a retinal function imager (RFI; Optical Imaging Inc., Rehovot, Israel). The built-in software of the RFI was used to identify and segment retinal collaterals with measurement of the blood flow velocities (BFV). One-way ANOVA was performed for BFV, followed by Newman-Keuls post hoc test. The level of significance was set at 5%. Results The total number of collateral segments involved in the study was 30, 31, 21, and 39 in the H, DM, MDR, and PDR groups, respectively. The BFVs in the collaterals were significantly lower in PDR (H: 1.86 ± 0.67, DM: 1.91 ± 0.71, MDR: 1.71 ± 0.53, PDR: 1.37 ± 0.58 mm/s). The PDR group showed a statistically significant difference in the comparisons to all groups (p = 0.012, p = 0.008, and p = 0.043 for the H, DM, and MDR groups, respectively), while no other comparisons between the groups were significant. Conclusion We observed decreased BFV in retinal collaterals in PDR that may be due to the extensive capillary dropout and retinal ischemia. Further studies are needed for the noninvasive functional assessment of retinal microvascular changes in DR to better understand the underlying pathophysiology.

scholarly journals Orbital Doppler Evaluation of Blood Flow Velocities in Patients with Diabetic Retinopathy

2012 ◽  
Vol 9 (2-3) ◽  
pp. 104-111 ◽  
Author(s):  
Mehdi Karami ◽  
Mohsen Janghorbani ◽  
Alireza Dehghani ◽  
Karim Khaksar ◽  
Ahmad Kaviani
Keyword(s):  
Blood Flow ◽  
Diabetic Retinopathy ◽  
Blood Flow Velocities ◽  
Doppler Evaluation ◽  
Flow Velocities

Higher optic nerve sheath diameters are associated with lower ocular blood flow velocities in glaucoma patients

2013 ◽  
Vol 252 (3) ◽  
pp. 477-483 ◽  
Author(s):  
Koen Willekens ◽  
Luís Abegão Pinto ◽  
Evelien Vandewalle ◽  
Carlos Marques-Neves ◽  
Ingeborg Stalmans
Keyword(s):  
Blood Flow ◽  
Optic Nerve ◽  
Ocular Blood Flow ◽  
Optic Nerve Sheath ◽  
Nerve Sheath ◽  
Blood Flow Velocities ◽  
Flow Velocities
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