title: [Analysis of blood flow in ophthalmic arteries in patients with middle and late stages of glaucoma with Doppler sonography].
abstract: OBJECTIVE
  To understand the actual blood flow in cases with middle and late stages of glaucoma and the role of vascular factor in the deterioration of visual function in such patients.
  
  
  METHODS
  The blood flow in ophthalmic arteries was determined with color Doppler sonography (CDS) in 156 cases of patients with middle and late stages of glaucoma as well as in 75 cases of normal individuals as controls.
  
  
  RESULTS
  The average peak systolic velocity (PSV) and end diastolic velocity (EDV) of ophthalmic artery in normal control are 35.98 +/- 9.13 cm/s and 11.98 +/- 3.90 cm/s; the PSV and EDV in primary open-angle glaucoma (POAG) group are 24.13 +/- 4.65 cm/s and 7.10 +/- 1.85 cm/s; and in primary close-angle glaucoma (PCAG) group are 22.89 +/- 5.43 cm/s and 7.06 +/- 1.92 cm/s, respectively. No significant difference was found between POAG group and PCAG group (P > 0.05). However, significant differences were shown between normal group and patients with glaucoma for both PSV and EDV (P < 0.01).
  
  
  CONCLUSIONS
  The blood flow in ophthalmic arteries in patients with middle and late stages of glaucoma decreases significantly and the disorder in local blood circulation is evident, that is highly related to the deterioration of visual function and supports the vascular factor theory in the pathogenesis of glaucoma.
authors.affiliation: Department of Ophthalmology, Heilong jiang Provincial Hospital, Haerbin 150036.
authors.forename: G
authors.initials: G
authors.lastname: Xu
authors.forename: H
authors.initials: H
authors.lastname: Zhu
authors.forename: Z
authors.initials: Z
authors.lastname: Wang
authors.forename: H
authors.initials: H
authors.lastname: Wei
authors.forename: Y
authors.initials: Y
authors.lastname: Shi
authors.forename: J
authors.initials: J
authors.lastname: Hao
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005901:Glaucoma / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009880:Ophthalmic Artery / Q000503:physiopathology*; D012039:Regional Blood Flow; D018608:Ultrasonography, Doppler