Evidence map›Paper›PMID 18214565›Full record

ArticleDocumenta ophthalmologica. Advances in ophthalmology2008

The photopic negative response of flash ERG in nonproliferative diabetic retinopathy.

Hongling Chen, Mingzhi Zhang, Shizhou Huang, Dezheng Wu

Abstract read
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In one paragraph

Article in Documenta ophthalmologica. Advances in ophthalmology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
0.6field-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

41 citing papers in PubMed, 49 citations in OpenAlex.

  1. Association and Multimodal Model of Retinal Mid-Peripheral Capillary Free Zones with Structural and Functional Parameters in Diabetic Patients Without Clinical Retinopathy.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
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  7. Visual Evoked Potentials for the Detection of Diabetic Retinal Neuropathy.International journal of molecular sciences · 2023
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  14. Observational
  15. The photopic negative response of the Light-adapted 3.0 ERG in clinical settings.Documenta ophthalmologica. Advances in ophthalmology · 2020
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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

4 authors at 3 institutions in 1 country.

Hongling ChenJoint Shantou International Eye Center, The Shantou University, Shantou, Guangdong, 515041, China.
Mingzhi Zhang
Shizhou Huang
Dezheng Wu
Sun Yat-sen University · CNChinese University of Hong Kong · CNShantou University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo test how the PhNR of the flash ERG is affected in human nonproliferative diabetic retinopathy (NPDR).

methodsThe PhNR was elicited with red stimuli (5 cd s/m(2) with 4-min duration) and blue background (10 cd/m(2)). Standard Ganzfeld flash ERGs were recorded according to the ISCEV standard for the clinical electroretinogram (2004). A total of 81 diabetic patients with different severity levels of NPDR were examined. Forty-three age-matched normal controls were also studied.

resultsThe amplitude of PhNR decreased significantly as DR progressed, while the implicit time was prolonged. Amplitudes of the PhNR in the control group, no DR, mild NPDR, moderate NPDR, and severe NPDR were 78.1 +/- 15.1 microV, 69.0 +/- 17.8 microV, 64.5 +/- 13.2 microV, 45.9 +/- 9.0 microV, and 33.7 +/- 10.8 muV respectively, and the implicit times of PhNR were 71.5 +/- 5.0, 72.0 +/- 6.2, 73.6 +/- 5.0, 75.7 +/- 6.1, and 82.9 +/- 7.8 min respectively. Compared to the control group, the reduction of PhNR amplitude in all diabetic groups was statistically significant. However, except for the OPs, the percent reduction of the amplitude of standard ERG waves was far less than that of the PhNR. The percent decrease in amplitude of the PhNR and summation OPs was not significantly different in any diabetic group. However, the reduction of the amplitude of summation OPs (and other standard ERG waves) was statistically significant only in moderate and severe NPDR groups.

conclusionsPhNR is a sensitive indicator of the function of inner retina in diabetic patients. There is a potential role for the PhNR in assessing inner retinal damage and evaluating the effect of treatment in NPDR.

Indexed as

ElectroretinographyAdultAgedDiabetic RetinopathyDisease ProgressionFemaleHumansLightMaleMiddle AgedPhotic StimulationRetinaRetinal Ganglion Cells

Identifiers

PMID18214565
OpenAlexW2169583627

What OpenQuestion holds

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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.