Pulsatile ocular blood flow among normal subjects and patients with high tension glaucoma.

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dc.contributor.authorAgarwal, Harish Cen_US
dc.contributor.authorGupta, Vineyen_US
dc.contributor.authorSihota, Ramanjiten_US
dc.contributor.authorSingh, Kulwanten_US
dc.date.accessioned2003-06-02en_US
dc.date.accessioned2009-05-29T10:02:17Z
dc.date.available2003-06-02en_US
dc.date.available2009-05-29T10:02:17Z
dc.date.issued2003-06-02en_US
dc.description.abstractPURPOSE: To estimate pulsatile ocular blood flow (POBF) among normal subjects and to compare various parameters in eyes of primary open angle glaucoma with high intraocular pressure (IOP). METHODS: POBF was estimated in 95 eyes of 95 normal subjects above the age of 40 years and in 35 eyes of 35 primary open angle glaucoma patients using the OBF system (OBF Labs Ltd., UK). Correlation of age, gender, IOP, pulse amplitude, pulse volume and pulse rate with POBF was studied. POBF values were measured in glaucomatous patients before IOP control and one month later after control of IOP to < 22 mmHg. RESULTS: The mean POBF among normal subjects was 1382.2 +/- 413 ml/min (range 636-2291 m/min). Females had a significantly higher mean POBF (1512 +/- 347 ml/min) than males (1193 +/- 312 ml/min). The mean IOP among normal subjects was 12.6 mmHg and in glaucoma patients, 29.1 mmHg. Mean POBF in glaucomatous eyes with initially elevated IOP was 718.9 +/- 322.6 ml/min, which improved after IOP control to 1129 +/- 291 ml/min. IOP had a strong (P < .01) negative correlation with POBF (r = -0.667) CONCLUSIONS: POBF among eyes of normal subjects in this study is higher than reported among Caucasian eyes. Primary open angle glaucoma eyes with high IOP have significantly reduced ocular blood flow. Therapy aimed at lowering IOP has a positive effect onocular haemodynamics.en_US
dc.description.affiliationDr. R P Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.en_US
dc.identifier.citationAgarwal HC, Gupta V, Sihota R, Singh K. Pulsatile ocular blood flow among normal subjects and patients with high tension glaucoma. Indian Journal of Ophthalmology. 2003 Jun; 51(2): 133-8en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/72247
dc.language.isoengen_US
dc.source.urihttps://www.ijo.inen_US
dc.subject.meshAdulten_US
dc.subject.meshCase-Control Studiesen_US
dc.subject.meshEye --blood supplyen_US
dc.subject.meshFemaleen_US
dc.subject.meshGlaucoma, Open-Angle --complicationsen_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshMiddle Ageden_US
dc.subject.meshOcular Hypertension --complicationsen_US
dc.subject.meshPulsatile Flowen_US
dc.subject.meshRegional Blood Flowen_US
dc.titlePulsatile ocular blood flow among normal subjects and patients with high tension glaucoma.en_US
dc.typeJournal Articleen_US
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