Evidence map›Paper›PMID 31335944›Full record

ArticleInvestigative ophthalmology & visual science2019

Loss of Foveal Cone Structure Precedes Loss of Visual Acuity in Patients With Rod-Cone Degeneration.

Ethan Bensinger, Nicholas Rinella, Asma Saud, Panagiota Loumou, Kavitha Ratnam, Shane Griffin, Jia Qin, Travis C Porco, Austin Roorda, Jacque L Duncan

Abstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
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

21 citing papers in PubMed.

  1. Trial
  2. Revealing the benefit of eye motion for acuity under emulated cone loss.bioRxiv : the preprint server for biology · 2026
    Article
  3. Article
  4. Review
  5. Retinal Sensitivity in Comparison to Cone Density in Choroideremia.Investigative ophthalmology & visual science · 2024
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Cone photoreceptor dysfunction in retinitis pigmentosa revealed by optoretinography.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  14. Impact of Photoreceptor Loss on Retinal Circuitry.Annual review of vision science · 2021
    Review
  15. Article
  16. Review
  17. Quantification of Retinal Ganglion Cell Morphology in Human Glaucomatous Eyes.Investigative ophthalmology & visual science · 2021
    Article
  18. Article
  19. Review
  20. Photoreceptor Structure in GNAT2-Associated Achromatopsia.Investigative ophthalmology & visual science · 2020
    Article
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

10 authors.

Ethan BensingerSchool of Optometry and Vision Science Graduate Group, University of California, Berkeley, California, United States.
Nicholas RinellaDepartment of Ophthalmology, University of California, San Francisco, California, United States.
Asma SaudDepartment of Ophthalmology, University of California, San Francisco, California, United States.
Panagiota LoumouDepartment of Ophthalmology, University of California, San Francisco, California, United States.
Kavitha RatnamSchool of Optometry and Vision Science Graduate Group, University of California, Berkeley, California, United States.
Shane GriffinDepartment of Ophthalmology, University of California, San Francisco, California, United States.
Jia QinDepartment of Ophthalmology, University of California, San Francisco, California, United States.
Travis C PorcoDepartment of Ophthalmology, University of California, San Francisco, California, United States.
Austin RoordaSchool of Optometry and Vision Science Graduate Group, University of California, Berkeley, California, United States.
Jacque L DuncanDepartment of Ophthalmology, University of California, San Francisco, California, United States.

Funding

Rapid-Prototyping and Design CoreP30EY002162 · NEI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LAKKARAJU, APARNA · 1985 to 2024
$16.8M
UC Berkeley Vision Science COREP30EY003176 · NEI · UNIVERSITY OF CALIFORNIA BERKELEY · PI RICHARD H KRAMER · 1985 to 2026
$16.4M
TRAINING PROGRAM IN VISION SCIENCET32EY007043 · NEI · UNIVERSITY OF CALIFORNIA BERKELEY · PI Suzanne MJ FLEISZIG · 1985 to 2026
$12.9M
Advanced Technology to Study Visual Function on a Cellular ScaleR01EY023591 · NEI · UNIVERSITY OF CALIFORNIA BERKELEY · PI DUNCAN, JACQUE LYNNE, ROORDA, AUSTIN · 2014 to 2023
$11.2M
NEI NIH HHS P30 EY002162NEI NIH HHS P30 EY003176NEI NIH HHS R01 EY023591NEI NIH HHS T32 EY007043
6 · The paper itself

Abstract

Purpose: To assess the relationship between cone spacing and visual acuity in eyes with rod-cone degeneration (RCD) followed longitudinally. Methods: High-resolution images of the retina were obtained using adaptive optics scanning laser ophthalmoscopy from 13 eyes of nine RCD patients and 13 eyes of eight healthy subjects at two sessions separated by 10 or more months (mean 765 days, range 311-1935 days). Cone spacing Z-score measured as close as possible (average <0.25°) to the preferred retinal locus was compared with visual acuity (letters read on the Early Treatment of Diabetic Retinopathy Study [ETDRS] chart and logMAR) and foveal sensitivity. Results: Cone spacing was significantly correlated with ETDRS letters read (ρ = -0.47, 95%CI -0.67 to -0.24), logMAR (ρ = 0.46, 95%CI 0.24 to 0.66), and foveal sensitivity (ρ = -0.30, 95%CI -0.52 to -0.018). There was a small but significant increase in mean cone spacing Z-score during follow-up of +0.97 (95%CI 0.57 to 1.4) in RCD patients, but not in healthy eyes, and there was no significant change in any measure of visual acuity. Conclusions: Cone spacing was correlated with visual acuity and foveal sensitivity. In RCD patients, cone spacing increased during follow-up, while visual acuity did not change significantly. Cone spacing Z-score may be a more sensitive measure of cone loss at the fovea than visual acuity in patients with RCD.

Indexed as

AdultCone-Rod DystrophiesDisease ProgressionFemaleFollow-Up StudiesFovea CentralisHumansMaleMiddle AgedOphthalmoscopyRetinal Cone Photoreceptor CellsRetrospective StudiesTime FactorsTomography, Optical CoherenceVisual AcuityYoung Adult

Identifiers

PMID31335944
PMCPMC6657704

What OpenQuestion holds

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Registered trials

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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.