Evidence map›Paper›PMID 41851876›Full record

ReviewBMC ophthalmology2026

Fellow-eye effect of intravitreal aflibercept 8mg in a patient with bilateral refractory nAMD: a case report and literature review.

Jingfa Zhang, Fan Zhang, Ping Wang, Bo Lin, Mingming Yang, Qingshan Chen

Abstract readCase ReportsReview
In one paragraph

Review in BMC ophthalmology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. The fellow eye effect.Eye (London, England) · 2026
    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

6 authors.

Jingfa Zhang *The Primasia International Eye Research Institute, School of Medicine, The Chinese University of Hong Kong, Shenzhen, 518000, China. 13917311571@139.com.
Fan Zhang *Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Shenyang, 110032, China.
Ping WangDepartment of Ophthalmology, Affiliated Hospital of Shandong Second Medical University, Weifang, 261041, Shandong, China.
Bo LinDepartment of Ophthalmology, The First People's Hospital of Lan Zhou, Lan Zhou, 730050, China.
Mingming YangDepartment of Ophthalmology, Shenzhen People's Hospital (The First Affiliated Hospital, Southern University of Science and Technology; The Second Clinical Medical College, Jinan University), Shenzhen, 518020, China.
Qingshan ChenShenzhen Eye Hospital, Shenzhen Eye Medical Center, Southern Medical University, Shenzhen, 518040, China.

Funding

National Natural Science Foundation of China No. 82171062
6 · The paper itself

Abstract

backgroundIntravitreal anti–vascular endothelial growth factor (anti-VEGF) therapy remains first-line therapy for the treatment of neovascular age-related macular degeneration (nAMD), but the high frequency of injections imposes a substantial burden on elderly patients. High-dose aflibercept 8 mg has been shown to extend dosing intervals while maintaining anatomical control. Fellow-eye effects have been reported with other anti-VEGF agents but not with aflibercept 8 mg. CASE PRESENTATION: An 89-year-old woman with bilateral refractory nAMD had received 23 prior anti-VEGF injections in the right eye. Owing to financial constraints, she underwent unilateral aflibercept 8 mg injection in the right eye only. Baseline best-corrected visual acuity (BCVA) was 0.82 the logarithm of the minimum angle of resolution (logMAR) in the right eye and 1.0 logMAR in the left eye. One week after intravitreal injection, optical coherence tomography (OCT) showed marked bilateral improvement: central subfield thickness (CST) decreased from 629 to 327 μm in the treated eye and from 357 to 308 μm in the untreated fellow eye. BCVA remained stable in the treated eye, while improved to 0.70 logMAR in the fellow eye.

conclusionThis is the first reported case of a fellow-eye effect associated with aflibercept 8 mg. The findings suggest a potential systemic effect of high-dose aflibercept, but it should be noted that, for patients with bilateral nAMD, bilateral treatment is still necessary to avoid insufficient treatment of the contralateral eye.

Indexed as

Angiogenesis InhibitorsReceptors, Vascular Endothelial Growth FactorRecombinant Fusion ProteinsWet Macular DegenerationAged, 80 and overFemaleFluorescein AngiographyHumansIntravitreal InjectionsTomography, Optical CoherenceVisual AcuityafliberceptAngiogenesis InhibitorsReceptors, Vascular Endothelial Growth FactorRecombinant Fusion ProteinsAnti-VEGFFellow-eye effectHigh-dose afliberceptnAMD

Identifiers

PMID41851876
PMCPMC13112757

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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.