Development of a binocular video-ophthalmoscope to compare parameters of heart beat induced blood volume changes between both eyes.

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F18%3APU139751" target="_blank" >RIV/00216305:26220/18:PU139751 - isvavai.cz</a>
Result on the web
<a href="https://iovs.arvojournals.org/article.aspx?articleid=2694641" target="_blank" >https://iovs.arvojournals.org/article.aspx?articleid=2694641</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Development of a binocular video-ophthalmoscope to compare parameters of heart beat induced blood volume changes between both eyes.
Original language description
To measure parameters of pulsatile heart beat induced blood volume changes and to compare results between both eyes (amplitude, phase shift) within the same heartbeat with exact synchronization and high temporal and spatial resolution. A binocular video ophthalmoscope was developed to acquire video sequences (25 fps, 250 frames) of both eyes simultaneously with exact synchronization. Each ophthalmoscope consists of an LED (575 nm) for illumination, an ophthalmic lens to generate an aerial image of the retina and a lens to image the aerial image to a CMOS camera (1.000 x 770 pixels). Acquired video sequences are registered offline to compensate for eye movements. Changing blood volume results in changing reflection of the retina. Higher blood volume results in lower reflection and vice versa. From registered video sequences, heart beat induced reflection (blood volume) changes can be measured in any user defined area of interest (AOI). The results can be compared between different positions in the s
Czech name
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Czech description
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Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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