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Color Doppler imaging in untreated high- and normal-pressure open-angle glaucoma.
Invest Ophthalmol Vis Sci. 1997 Mar; 38(3):690-6.IO

Abstract

PURPOSE

To evaluate ocular blood flow velocity indices in untreated primary open-angle glaucoma (POAG) and normal pressure glaucoma (NPG).

METHODS

Twenty-five untreated patients with NPG, 23 untreated patients with POAG, and 26 age-matched normal control subjects underwent color Doppler imaging for the measurement of blood flow velocity in the central retinal and ophthalmic arteries. Neither the patients nor the control subjects were using systemic beta-blockers or calcium channel blockers. After log transformation of non-normal data, group differences were compared with a one-way analysis of variance followed by unpaired t-test with the Bonferroni correction. Statistical significance was set at P < 0.05.

RESULTS

The central retinal artery end diastolic velocity was significantly lower in patients with POAG than in normal subjects. The ophthalmic artery peak systolic velocity (PSV) was significantly greater in patients with POAG than in those with NPG and normal subjects. The resistance index (RI) of both the ophthalmic and central retinal arteries was significantly greater in patients with POAG than in normal subjects, and the central retinal artery RI was significantly greater in those with NPG than in normal subjects. Systemic pulse pressure and systolic blood pressure were significantly greater in patients with POAG compared with normal subjects. Multiple regression analysis showed a significant relation between ophthalmic artery PSV and intraocular pressure (but not with any of the cardiovascular parameters) in the POAG group. Chi-square analysis found significantly more systemic vascular disease in patients with NPG and POAG compared with that of normal subjects.

CONCLUSIONS

There was an increased resistance to blood flow in the central retinal artery of untreated patients with NPG and POAG and also in the ophthalmic artery of patients with POAG. The ophthalmic artery peak systolic velocity was elevated in untreated patients with POAG. Altered ocular circulation (with different patterns of presentation) appears to be common to patients with NPG and patients with POAG.

Authors+Show Affiliations

Princess Alexandra Eye Pavilion, Royal Infirmary of Edinburgh, Scotland.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

9071223

Citation

Butt, Z, et al. "Color Doppler Imaging in Untreated High- and Normal-pressure Open-angle Glaucoma." Investigative Ophthalmology & Visual Science, vol. 38, no. 3, 1997, pp. 690-6.
Butt Z, O'Brien C, McKillop G, et al. Color Doppler imaging in untreated high- and normal-pressure open-angle glaucoma. Invest Ophthalmol Vis Sci. 1997;38(3):690-6.
Butt, Z., O'Brien, C., McKillop, G., Aspinall, P., & Allan, P. (1997). Color Doppler imaging in untreated high- and normal-pressure open-angle glaucoma. Investigative Ophthalmology & Visual Science, 38(3), 690-6.
Butt Z, et al. Color Doppler Imaging in Untreated High- and Normal-pressure Open-angle Glaucoma. Invest Ophthalmol Vis Sci. 1997;38(3):690-6. PubMed PMID: 9071223.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Color Doppler imaging in untreated high- and normal-pressure open-angle glaucoma. AU - Butt,Z, AU - O'Brien,C, AU - McKillop,G, AU - Aspinall,P, AU - Allan,P, PY - 1997/3/1/pubmed PY - 1997/3/1/medline PY - 1997/3/1/entrez SP - 690 EP - 6 JF - Investigative ophthalmology & visual science JO - Invest Ophthalmol Vis Sci VL - 38 IS - 3 N2 - PURPOSE: To evaluate ocular blood flow velocity indices in untreated primary open-angle glaucoma (POAG) and normal pressure glaucoma (NPG). METHODS: Twenty-five untreated patients with NPG, 23 untreated patients with POAG, and 26 age-matched normal control subjects underwent color Doppler imaging for the measurement of blood flow velocity in the central retinal and ophthalmic arteries. Neither the patients nor the control subjects were using systemic beta-blockers or calcium channel blockers. After log transformation of non-normal data, group differences were compared with a one-way analysis of variance followed by unpaired t-test with the Bonferroni correction. Statistical significance was set at P < 0.05. RESULTS: The central retinal artery end diastolic velocity was significantly lower in patients with POAG than in normal subjects. The ophthalmic artery peak systolic velocity (PSV) was significantly greater in patients with POAG than in those with NPG and normal subjects. The resistance index (RI) of both the ophthalmic and central retinal arteries was significantly greater in patients with POAG than in normal subjects, and the central retinal artery RI was significantly greater in those with NPG than in normal subjects. Systemic pulse pressure and systolic blood pressure were significantly greater in patients with POAG compared with normal subjects. Multiple regression analysis showed a significant relation between ophthalmic artery PSV and intraocular pressure (but not with any of the cardiovascular parameters) in the POAG group. Chi-square analysis found significantly more systemic vascular disease in patients with NPG and POAG compared with that of normal subjects. CONCLUSIONS: There was an increased resistance to blood flow in the central retinal artery of untreated patients with NPG and POAG and also in the ophthalmic artery of patients with POAG. The ophthalmic artery peak systolic velocity was elevated in untreated patients with POAG. Altered ocular circulation (with different patterns of presentation) appears to be common to patients with NPG and patients with POAG. SN - 0146-0404 UR - https://www.unboundmedicine.com/medline/citation/9071223/Color_Doppler_imaging_in_untreated_high__and_normal_pressure_open_angle_glaucoma_ L2 - https://iovs.arvojournals.org/article.aspx?volume=38&amp;issue=3&amp;page=690 DB - PRIME DP - Unbound Medicine ER -