[Glaucomatous hemodynamic changes in central retinal artery and ocular artery].
The hemodynamics of ocular artery (OA) and central retinal artery (CRA) in 100 eyes of 50 normal subjects and 61 eyes of 39 patients with glaucoma were studied with colour doppler image technique. The results showed the hemodynamic characteristics about normal and glaucomatous eyes and that the ischemic change of CRA was one of the high risk factors in glaucomatous visual functional damages. We propose a new classification of glaucomatous hemodynamics and the clinical application of hemodynamic parameters in glaucoma diagnosis. We also, for the first time, make use of hydrodynamic pressure to calculate the retinal perfusion pressure, which explain the phenomena of intraocular pressure increasing with blood flow decreasing and the effect of hyperviscosity as well as cardiovascular disease on glaucoma. A new approach to the research of glaucoma is presented.
Zhou
G
G
Department of Ophthalmology, Guangzhou Second People's Hospital, China.
Xiao
M
M
Zhou
W
W
D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D005901:Glaucoma / Q000209:etiology / Q000503:physiopathology*; D006439:Hemodynamics; D006801:Humans; D007511:Ischemia / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D009880:Ophthalmic Artery / Q000000981:diagnostic imaging / Q000503:physiopathology*; D012161:Retinal Artery / Q000000981:diagnostic imaging / Q000503:physiopathology*; D014463:Ultrasonography