Indian Journal of Radiology Indian Journal of Radiology  

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Year : 2006  |  Volume : 16  |  Issue : 4  |  Page : 679-682
Comparative study of ocular blood flow parameters by color doppler imaging in healthy and glaucomatous eye


Department of Radiodiagnosis, R.N.T. Medical College & Associated Group of Hospitals, Udaipur - 313001, Rajasthan, India

Correspondence Address:
N C Sharma
D-12, M.B. Government Hospital Campus, Udaipur-313001, Rajasthan
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-3026.32298

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Objective(s): To evaluate the effect of optic nerve circulation, using color Doppler imaging (CDI) on progression of visual field damage in primary open angle glaucoma and chronic angle closure glaucoma. Material and Methods (s): The study included randomly selected 25 patients with established primary open angle glaucoma, 15 patients with chronic angle closure glaucoma, who underwent medical treatment/had undergone laser or surgical procedure for glaucoma and 15 healthy volunteers of same age group were taken as control group. Color Doppler imaging of ophthalmic artery (OA), central retinal artery (CRA) and posterior ciliary artery (PCA) were conducted and various variables recorded to determine ocular blood flow in glaucomatous patients. Result(s): Patients with stable visual field had higher diastolic velocity and lower resistivity index (RI) in all three ocular vessels (P<.001), compared with those with deteriorating visual field. Significant correlation was found between severity of glaucomatous visual field defects and degree of impairment of retrobulbar haemodynamics. Conclusion(s): Color Doppler imaging variables of OA, CRA and PCA correlate with risk of visual field deterioration in glaucomatous patients suggesting major role of vascular factor in pathogenesis of glaucomatous optic neuropathy.


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