Evidence map›Paper›PMID 34795055›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Cone photoreceptor dysfunction in retinitis pigmentosa revealed by optoretinography.

Ayoub Lassoued, Furu Zhang, Kazuhiro Kurokawa, Yan Liu, Marcel T Bernucci, James A Crowell, Donald T Miller

Open access · hybridAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed
5.4field-weighted citation impact, top 3% 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

74 citing papers in PubMed, 100 citations in OpenAlex.

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  9. ƒ(Cell): Software for Reproducible Analysis of Optoretinograms.Translational vision science & technology · 2026
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14 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Ayoub LassouedSchool of Optometry, Indiana University, Bloomington, IN 47405.
Furu ZhangSchool of Optometry, Indiana University, Bloomington, IN 47405.ORCID 0000-0002-1597-8824
Kazuhiro KurokawaSchool of Optometry, Indiana University, Bloomington, IN 47405.ORCID 0000-0003-0494-0537
Yan LiuSchool of Optometry, Indiana University, Bloomington, IN 47405.ORCID 0000-0002-5837-4908
Marcel T BernucciSchool of Optometry, Indiana University, Bloomington, IN 47405.ORCID 0000-0001-5674-0778
James A CrowellSchool of Optometry, Indiana University, Bloomington, IN 47405.
Donald T MillerSchool of Optometry, Indiana University, Bloomington, IN 47405 dtmiller@indiana.edu.ORCID 0000-0003-4395-6216
Indiana University Bloomington · US

Funding

Optical Imaging of the Photoreceptor-RPE ComplexR01EY018339 · NEI · TRUSTEES OF INDIANA UNIVERSITY · PI MILLER, DONALD T · 2007 to 2025
$7.7M
Imaging spatial and temporal dynamics of retinal ganglion cellsR01EY029808 · NEI · TRUSTEES OF INDIANA UNIVERSITY · PI MILLER, DONALD T · 2019 to 2022
$1.7M
NEI NIH HHS R01 EY018339NEI NIH HHS R01 EY029808
6 · The paper itself

Abstract

Retinitis pigmentosa (RP) is the most common group of inherited retinal degenerative diseases, whose most debilitating phase is cone photoreceptor death. Perimetric and electroretinographic methods are the gold standards for diagnosing and monitoring RP and assessing cone function. However, these methods lack the spatial resolution and sensitivity to assess disease progression at the level of individual photoreceptor cells, where the disease originates and whose degradation causes vision loss. High-resolution retinal imaging methods permit visualization of human cone cells in vivo but have only recently achieved sufficient sensitivity to observe their function as manifested in the cone optoretinogram. By imaging with phase-sensitive adaptive optics optical coherence tomography, we identify a biomarker in the cone optoretinogram that characterizes individual cone dysfunction by stimulating cone cells with flashes of light and measuring nanometer-scale changes in their outer segments. We find that cone optoretinographic responses decrease with increasing RP severity and that even in areas where cone density appears normal, cones can respond differently than those in controls. Unexpectedly, in the most severely diseased patches examined, we find isolated cones that respond normally. Short-wavelength-sensitive cones are found to be more vulnerable to RP than medium- and long-wavelength-sensitive cones. We find that decreases in cone response and cone outer-segment length arise earlier in RP than changes in cone density but that decreases in response and length are not necessarily correlated within single cones.

Indexed as

ElectroretinographyEye ProteinsHumansOphthalmoscopyRetinaRetinal Cone Photoreceptor CellsRetinitis PigmentosaEye ProteinsRPGR protein, humanadaptive opticsoptical coherence tomographyoptoretinographyphotoreceptorsretinitis pigmentosa

Identifiers

PMID34795055
PMCPMC8617487
OpenAlexW3212579199

What OpenQuestion holds

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LicenceCC BY
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.