Evidence map›Paper›PMID 32318281›Full record

ArticleJournal of ophthalmology2020

Electrophysiological and Structural Changes in Chinese Patients with LHON.

Min Wang, Hong Guo, Shiying Li, Gang Wang, Yanling Long, Xiaohong Meng, Bo Liu, Yong Liu, Anthony G Robson, Zheng Qin Yin

Open access · goldAbstract read
In one paragraph

Article in Journal of ophthalmology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

10 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Article
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  4. Leber's Hereditary Optic Neuropathy.Medical archives (Sarajevo, Bosnia and Herzegovina) · 2025
    Article
  5. Review
  6. 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

10 authors at 2 institutions in 2 countries.

Min WangSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Military Medical University), Chongqing, China.ORCID https://orcid.org/0000-0003-0581-6669
Hong GuoDepartment of Medical Genetics, Third Military Medical University (Army Military Medical University), Chongqing, China.
Shiying LiSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Military Medical University), Chongqing, China.ORCID https://orcid.org/0000-0001-9783-9520
Gang WangSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Military Medical University), Chongqing, China.
Yanling LongSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Military Medical University), Chongqing, China.
Xiaohong MengSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Military Medical University), Chongqing, China.
Bo LiuSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Military Medical University), Chongqing, China.
Yong LiuSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Military Medical University), Chongqing, China.ORCID https://orcid.org/0000-0003-0439-7167
Anthony G RobsonDepartment of Electrophysiology, Moorfields Eye Hospital, London, UK.
Zheng Qin YinSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Military Medical University), Chongqing, China.ORCID https://orcid.org/0000-0002-4253-7485
Army Medical University · CNMoorfields Eye Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo review retrospectively the electrophysiological and structural changes in 13 Chinese patients with Leber hereditary optic neuropathy (LHON).

methods26 eyes of 13 patients with a genetically confirmed diagnosis of LHON were categorized into two groups according to the duration of the disease: group 1 (duration less than 3 months) and group 2 (duration between 3 months and 18 years). Clinical history, comprehensive visual electrophysiology, optical coherence tomography (OCT), and color fundus photography were performed.

resultsFundoscopy showed optic disc hyperemia in group 1 and optic atrophy in group 2. OCT measures of retinal nerve fiber layer (RNFL) thickness around the optic disc and surrounding macula were normal in group 1 but reduced in group 2 (10 of 10 eyes). The thickness of the retinal ganglion cell layer (GCL) plus inner plexiform layer (IPL) surrounding the macula reduced significantly in group 1 and group 2 compared with a healthy control group. Pattern ERG (PERG) P50 amplitude was normal, but the N95/P50 ratio reduced in most of group 1 (4 of 5 eyes) and in all of group 2 (11 eyes). PERG P50 peak time was abnormally short in group 2. Multifocal electroretinography (mfERG) showed subnormal responses associated with ring 1 (the central area) and ring 2 in group 1 and reductions in rings 1, 2, and 3 in group 2.

conclusionThe study highlights differences in retinal structure and function between the acute and chronic stages of LHON in a group of Chinese patients. There is PERG evidence of retinal ganglion cell dysfunction and OCT evidence of GCL + IPL thinning in both groups, but there is additional peripapillary RNFL loss in the chronic stage, associated with more severe RGC dysfunction. There is multifocal ERG evidence of localized macular dysfunction in both acute and chronic groups. The study highlights the importance of comprehensive electrophysiological and structural assessments of the retina in LHON and is pertinent to studies that aim to monitor disease progression or the effects of future therapeutic interventions.

Identifiers

PMID32318281
PMCPMC7152967
OpenAlexW3014369068

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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.