ArticleBiomedical optics express2018
Time-resolved quantitative inter-eye comparison of cardiac cycle-induced blood volume changes in the human retina.
Article in Biomedical optics express, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
10 citing papers in PubMed, 17 citations in OpenAlex.
- Pilot study: non-invasive binocular fundal pulsation measurements using infrared photorefraction.Biomedical optics express · 2025Article
- Compact Monocular Video-Ophthalmoscope to Measure Retinal Reflectance Changes to Flicker Light Stimuli.Journal of biophotonics · 2025Article
- No cardiac phase bias for threat-related distance perception under naturalistic conditions in immersive virtual reality.Royal Society open science · 2024Article
- A retinal imaging system for combined measurement of optic nerve head vascular pulsation and stimulated vasodilation in humans.Scientific reports · 2023Article
- Assessment of retinal vein pulsation through video-ophthalmoscopy and simultaneous biosignals acquisition.Biomedical optics express · 2023Article
- A multi-color video-ophthalmoscopes allows to measure the spectral distribution of light absorption of blood in the human retina.Frontiers in medicine · 2023Article
- Comparative analysis of retinal photoplethysmographic spatial maps and thickness of retinal nerve fiber layer.PloS one · 2023Article
- Heart rate and age modulate retinal pulsatile patterns.Communications biology · 2022Article
- Photoplethysmographic analysis of retinal videodata based on the Fourier domain approach.Biomedical optics express · 2021Article
- Imaging video plethysmography shows reduced signal amplitude in glaucoma patients in the area of the microvascular tissue of the optic nerve head.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2021Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We describe a low-cost, easy to use binocular instrument to acquire retinal video sequences of both eyes simultaneously. After image registration, cardiac cycle-induced pulsatile light attenuation changes can be measured quantitatively with high spatial and temporal resolution. Parameters such as amplitude, pulse form, and time shift between light attenuation changes can be calculated and compared between eye sides. Deviation from inter-eye symmetry can be not only an early sign of beginning eye diseases such as glaucoma but also a sign of pathological changes in the carotid arteries; hence, this method can improve the early detection of pathological changes. Important features compared to existing monocular instruments are a narrow band light source with the wavelength close to the peak of the blood extinction, and a proportional relationship of image intensity and light intensity, which are the main requirements for quantitative evaluation.
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.