Twelve-hour reproducibility of retinal and optic nerve blood flow parameters in healthy individuals
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چکیده
منابع مشابه
Twelve hour reproducibility of choroidal blood flow parameters in healthy subjects.
AIMS/BACKGROUND To investigate the reproducibility and potential diurnal variation of choroidal blood flow parameters in healthy subjects over a period of 12 hours. METHODS The choroidal blood flow parameters of 16 healthy non-smoking subjects were measured at five time points during the day (8:00, 11:00, 14:00, 17:00, and 20:00). Outcome parameters were pulsatile ocular blood flow as assesse...
متن کاملOptic nerve blood flow and its regulation.
Intracranial optic nerve blood flow was measured by the radiolabeled microsphere technique in 30 adult sheep under light barbiturate anesthesia. Regional blood-flow rates were determined under basal conditions. The responses of regional blood flow to alterations in PaCO2 and to changes in arterial blood pressure were also measured. Under basal conditions blood flow was comparable to that found ...
متن کاملOptic Nerve Head Blood Flow in Glaucoma
These days it is commonly accepted that multiple factors are involved in the etiology of glaucoma. Although many studies have demonstrated that the major risk factor for glaucoma is an increase in intraocular pressure (IOP), some studies, including epidemiologic studies, have suggested an association between glaucoma, especially primary open-angle glaucoma (POAG) and normal-tension glaucoma (NT...
متن کاملOptic Nerve Head Blood Flow Autoregulation during Changes in Arterial Blood Pressure in Healthy Young Subjects
AIM In the present study the response of optic nerve head blood flow to an increase in ocular perfusion pressure during isometric exercise was studied. Based on our previous studies we hypothesized that subjects with an abnormal blood flow response, defined as a decrease in blood flow of more than 10% during or after isometric exercise, could be identified. METHODS A total of 40 healthy subje...
متن کاملDiurnal Variations in Blood Flow at Optic Nerve Head and Choroid in Healthy Eyes
To investigate the diurnal variations of the ocular blood flow in healthy eyes using laser speckle flowgraphy (LSFG), and to determine the relationship of the diurnal variations between the ocular blood flow and other ocular parameters.This prospective cross-sectional study was conducted at Nagoya University Hospital. We studied 13 healthy volunteers whose mean age was 33.5 ± 7.6 years. The mea...
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ژورنال
عنوان ژورنال: Acta Ophthalmologica
سال: 2009
ISSN: 1755-375X,1755-3768
DOI: 10.1111/j.1755-3768.2008.01388.x