Evidence map›Paper›PMID 33143008›Full record

ArticleJournal of clinical medicine2020

Early Retinal Changes by OCT Angiography and Multifocal Electroretinography in Diabetes.

Luisa Frizziero, Giulia Midena, Evelyn Longhin, Marianna Berton, Tommaso Torresin, Raffaele Parrozzani, Elisabetta Pilotto

Open access · goldAbstract read
In one paragraph

Article in Journal of clinical medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
4.9field-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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Radiation retinopathy: a review.International ophthalmology · 2026
    Review
  5. Retinal Neurophysiological Parameters in Young Patients With Type 1 Diabetes.Investigative ophthalmology & visual science · 2026
    Article
  6. Retinal vessel tortuosity and fractal dimension in diabetic retinopathy.International journal of retina and vitreous · 2025
    Article
  7. The relationship between ON-OFF function and OCT structural and angiographic parameters in early diabetic retinal disease.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2025
    Article
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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

7 authors at 4 institutions in 1 country.

Luisa FrizzieroIRCCS-Fondazione Bietti, 00198 Rome, Italy.ORCID 0000-0003-1749-2737
Giulia MidenaInstitute of Ophthalmology, Policlinico Gemelli, IRCCS, 00168 Rome, Italy.ORCID 0000-0003-4712-6631
Evelyn LonghinDepartment of Ophthalmology, University of Padova, 35128 Padova, Italy.
Marianna BertonASST Rhodense, Garbagnate Milanese, 20024 Milan, Italy.
Tommaso TorresinDepartment of Ophthalmology, University of Padova, 35128 Padova, Italy.
Raffaele ParrozzaniDepartment of Ophthalmology, University of Padova, 35128 Padova, Italy.ORCID 0000-0003-0216-727X
Elisabetta PilottoDepartment of Ophthalmology, University of Padova, 35128 Padova, Italy.
University of Padua · ITAgostino Gemelli University Polyclinic · ITAziende Socio Sanitaria Territoriale RhodenseFondazione G.B. Bietti · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo evaluate the earliest retinal morphological and functional changes in diabetic eyes without or with early signs of diabetic retinopathy (DR).

methodsTwenty-two eyes with no DR (noDR group), 22 eyes with mild DR (DR group), and 18 healthy nondiabetic eyes (controls) were enrolled. All eyes were studied by means of spectral domain optical coherence tomography (OCT), OCT angiography (OCTA), and multifocal electroretinogram (mfERG).

resultsA significantly higher number of OCT hyperreflective intraretinal foci (HRF) was found in both noDR and DR groups versus controls, but not between DR groups. The OCTA parameters of the superficial vascular plexus (SVP) were significantly reduced in the noDR group both versus controls and DR group (

conclusionsRetinal vascular and functional parameters are differently involved in diabetic eyes; major vascular changes in the SVP and functional alterations of the mfERG are present in diabetic eyes with no clinical microvascular signs of DR, while ICP is mainly involved when early ophthalmoscopic signs of DR are present. The integrated use of mfERG and OCTA provides new significant insights into the pathogenesis of diabetic related retinal disease.

Indexed as

diabetic retinopathyearly stageshyperreflective intraretinal spotsmicroaneurysmsmorpho-functional correlationmultifocal electroretinographyoptical coherence tomographyoptical coherence tomography angiographyretinal layersvascular plexuses

Identifiers

PMID33143008
PMCPMC7692230
OpenAlexW3096200760

What OpenQuestion holds

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LicenceCC BY
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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.