Abstract
The most common methods for studying ocular blood flow include the method of color Doppler imaging (CDI). Purpose. To evaluate the effect of drinking coffee on the indicators of retrobulbar blood flow in healthy people using color doppler and to predict the possible impact of this factor on the results of the study of ocular blood flow in pathology of the organ of vision. Material and methods. The total number of observations is 16: 8 healthy people (8 eyes) before drinking coffee and an hour after drinking it, 8 healthy people (8 eyes) of the control group. The age of the subjects was 28 ± 2 years. As a control feature, a cup of made coffee (150 ml) was used, which was drunk one hour before the examination. The control group included persons who underwent a study of retrobulbar blood flow with an hour interval without drinking coffee. The calculations were carried out using the STATISTICA 13.0 software. Results. Analyzing the dynamics of the CDI indicators, there was an increase in the diastolic blood flow velocity and the average blood flow velocity in the ophthalmic artery one hour after drinking coffee (p < 0.05) compared with the control group. When assessing the indicators of the resistance index and the pulse index, their increase was found, but these changes turned out to be reliably insignificant, which indicates a change in blood flow in a certain period of cardiac output, but does not affect the total blood flow in the ophthalmic artery. Conclusion. Thus, the data obtained during the CDI indicate a change in ocular blood flow in the ophthalmic artery to a certain cardiac output one hour after drinking coffee, without affecting the true blood flow velocity and peripheral resistance in the ophthalmic artery. The CDI values in the central retinal artery did not change. Keywords: ophthalmic artery, central retinal artery, color Doppler imaging, drinking coffee
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