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  • Title: Ocular haemodynamics in pseudoexfoliative and primary open-angle glaucoma.
    Author: Martinez A, Sanchez M.
    Journal: Eye (Lond); 2008 Apr; 22(4):515-20. PubMed ID: 17173007.
    Abstract:
    OBJECTIVE: To compare the retrobulbar haemodynamic parameters in the ophthalmic artery (OA) and short posterior ciliary arteries (SPCA) in pseudoexfoliative and primary open-angle glaucoma patients. SUBJECTS AND METHODS: Fourty-three eyes from 43 patients with pseudoexfoliative glaucoma (PXE) and 31 eyes from 31 patients with primary open-angle glaucoma (POAG) who met the inclusion/exclusion criteria were included in this prospective cross-sectional study. Colour Doppler imaging measurements, peak systolic velocity (PSV), and end-diastolic velocity (EDV) were assessed in the OA and posterior ciliary arteries (PCA). Pourcelot resistivity indices (RI) were calculated. Visual function was assessed using the 24-2 Swedish Interactive Threshold Algorithm (SITA). The main outcomes of the study were PSV, EDV, and RI in the OA and SPCA. RESULTS: In POAG patients, PSV and EDV were significantly lower in the OA, P=0.003 and P<0.001 respectively, and in the PCA, P=0.003 and P<0.001 respectively, when compared with the PXE group. The RI was significantly higher, P<0.001, in both vessels, in the POAG group. CONCLUSION: The results of this study have found reduced PSV and EDV and increased RI in the retrobulbar vessels of POAG patients when compared with PXE patients.
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