Evidence map›Paper›PMID 34893981›Full record

ArticleAnnals of the New York Academy of Sciences2022

Quantification of intrinsic optical signals in the outer human retina using optical coherence tomography.

Alina Messner, Valentin Aranha Dos Santos, Hannes Stegmann, Stefan Puchner, Doreen Schmidl, Rainer Leitgeb, Leopold Schmetterer, René M Werkmeister

Open access · hybridAbstract read
In one paragraph

Article in Annals of the New York Academy of Sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.8field-weighted citation impact, top 32% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 11 citations in OpenAlex.

  1. Subretinal Aspects of the Optoretinographic Response.Investigative ophthalmology & visual science · 2026
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  3. Subretinal aspects of the optoretinographic response.bioRxiv : the preprint server for biology · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 3 countries.

Alina MessnerCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.
Valentin Aranha Dos SantosCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.
Hannes StegmannCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.
Stefan PuchnerCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.
Doreen SchmidlDepartment of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria.
Rainer LeitgebCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.
Leopold SchmettererCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.
René M WerkmeisterCenter for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.ORCID 0000-0002-5147-5714
Medical University of Vienna · ATChristian Doppler Laboratory for Thermoelectricity · ATNanyang Technological University · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Intrinsic optical signals constitute a noninvasive biomarker promising the objective assessment of retinal photoreceptor function. We employed a commercial optical coherence tomography (OCT) system and an OCT signal model for evaluation of optical path length (OPL) changes in the temporal outer retina of five healthy subjects during light adaptation. Data were acquired at 30 time points, in ambient light and during long duration stimulation with white light, and analyzed, employing a signal model based on the sum of seven Gaussian curves corresponding to all relevant anatomical structures of the outer retina. During light stimulation, mean OPL between rod outer segment tips (ROST) and the retinal pigment epithelium (RPE) decreased by 21.4 ± 3.5%. Further, OPL between the external-limiting membrane (ELM) and the RPE decreased by 5.2 ± 0.9% versus baseline, while OPL between ELM and ROST showed an initial decrease by 2.1 ± 1.6% versus baseline and, thereafter, increased by 2.8 ± 2.1% versus baseline. Thus, the presented approach allowed for assess to dynamic changes in the outer retina in response to light. The change in the subretinal space occurring in the context of light adaptation could be measured using a standard OCT platform and a dedicated signal model.

Indexed as

RetinaTomography, Optical CoherenceHumansRetinal Pigment Epitheliumintrinsic optical signalsoptical coherence tomographyoptophysiologyphotoreceptorssignal analysis

Identifiers

PMID34893981
PMCPMC9299665
OpenAlexW4200386554

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.