Color Doppler Analysis of Ocular Vessel Blood Velocity in Normal-tension Glaucoma

Harris, Alon; Sergott, Robert C.; Spaeth, George L.; Katz, Jay; Shoemaker, John A.; Martin, Bruce

doi:10.1016/s0002-9394(14)76579-1

Cited by 283 publications

(211 citation statements)

References 25 publications

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“…[12][13][14] Recent studies have indicated that blood flow regulatory mechanisms may be deficient in patients with glaucoma, particularly in the subgroup with NTG. [15][16][17] In most people, systemic arterial BP decreases physiologically during sleep.…”

Section: Discussionmentioning

confidence: 99%

Comparison of ambulatory blood pressure values in patients with glaucoma and ocular hypertension

Yazıcı

Usta

Ertürk

et al. 2003

Eye

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Section: Discussionmentioning

confidence: 99%

Comparison of ambulatory blood pressure values in patients with glaucoma and ocular hypertension

Yazıcı

Usta

Ertürk

et al. 2003

Eye

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“…Using colour Doppler imaging a decreased end diastolic and an increased peak systolic blood flow velocity as well as an increased resistive index were found in the ophthalmic, central retinal and short posterior ciliary arteries in POAG and especially in NPG patients compared with controls [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Scanning laser Doppler flowmetry in glaucoma

1996

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Scanning laser Doppler flowmetry is a new means for the measurement of capillary perfusion. We studied the retinal and neuroretinal rim capillary perfusion with the Heidelberg Retina Flowmeter in one randomly selected eye of 31 healthy volunteers, 42 primary open angle glaucoma (POAG) patients and 17 normal pressure glaucoma (NPG) patients. The reproducibility of the measurements on the temporal and nasal retina and on the disc rim was 19%, 26% and 28% in the unselected control group, 12% in the POAG and 12%, 13% and 10% in the NPG group, respectively. Optic disc flow was significantly higher than retinal flow (p < 0.000001). Differences in corresponding flow values between healthy volunteers and glaucoma patients as well as between POAG and NPG patients were not statistically significant. There was no correlation between the temporal and nasal flow values of the same eyes. The average variation in flow between adjacent frame positions was 18.5%. Actual intraocular pressure and the type of treatment had no influence on the retinal flow. The results suggest that the position of the test-frame is very important for the final result. We could not find any significant difference in the perfusion between glaucomatous and control eyes with the Heidelberg Retina Flowmeter.

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“…By means of CDI, decreased flow velocity and increased vascular resistance in the central retinal artery (CRA) and posterior ciliary arteries (PCA) have also been identified for patients with POAG and NTG (Butt et al 1995;Harris et al 1994;Rankin et al 1995;Sergott et al 1994;Yamazaki & Hayamizu 1995). In addition, either spontaneous or artificial elevation of intraocular pressure (IOP) was associated with decreased flow velocity and increased resistive index in the CRA and PCA (Harris et al 1996;Liu et al 1997;Trible & Anderson 1998).…”

mentioning

confidence: 99%

Variations in ocular hemodynamics in patients with early and late glaucoma

Liu

Chiou

Chiang

et al. 1999

Acta Ophthalmologica Scandinavica

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ABSTRACT.Purpose: To determine the retrobulbar hemodynamics in glaucoma patients with different degrees of optic nerve damage. Methods: Color Doppler imaging was performed in 52 patients with controlled primary open angle glaucoma (POAG) and in 25 control subjects. Glaucomatous eyes were divided into early and late groups based on the perimetry findings. Peak systolic velocity (PSV), end diastolic velocity (EDV), and resistive index of the central retinal artery (CRA) and posterior ciliary arteries (PCA) were evaluated. Results: Early glaucoma showed significantly decreased PSV in nasal PCA when compared with the normal. Late glaucoma showed significantly decreased PSV and EDV in the CRA and nasal PCA, and significantly decreased PSV in temporal PCA as compared with the control and early glaucoma. The resistive index of the CRA also increased significantly in late glaucoma. Conclusion: Eyes with advanced glaucomatous optic neuropathy were associated with more marked alterations in retrobulbar circulation than eyes with less nerve damage.

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Color Doppler Analysis of Ocular Vessel Blood Velocity in Normal-tension Glaucoma

Cited by 283 publications

References 25 publications

Comparison of ambulatory blood pressure values in patients with glaucoma and ocular hypertension

Comparison of ambulatory blood pressure values in patients with glaucoma and ocular hypertension

Scanning laser Doppler flowmetry in glaucoma

Variations in ocular hemodynamics in patients with early and late glaucoma

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