Evidence map›Paper›PMID 32335033›Full record

SynthesisOphthalmology. Retina2020

Nonexudative Macular Neovascularization - A Systematic Review of Prevalence, Natural History, and Recent Insights from OCT Angiography.

Rita Laiginhas, Jin Yang, Philip J Rosenfeld, Manuel Falcão

Open access · greenAbstract readSystematic Review
In one paragraph

Synthesis in Ophthalmology. Retina, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
5.2field-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

39 citing papers in PubMed, 61 citations in OpenAlex.

  1. Trial
  2. Review of emerging imaging findings to reveal a broader spectrum of lesions in AMD.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Review
  3. Clinical course of non-exudative macular neovascularisations in sustained unilateral neovascular age-related macular degeneration.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Article
  4. Observational
  5. Non-exudative macular neovascularization: a 3-year follow-up study assessing the progression for exudative or atrophic stages.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Observational
  6. Article
  7. Article
  8. Article
  9. Article
  10. Comparable choroidal thickness between treated eyes and untreated fellow-eyes in patients with unilateral neovascular AMD: a paired-eyes comparative study.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025
    Article
  11. Article
  12. Article
  13. Article
  14. Comparison between indocyanine green angiography and optical coherence tomography angiography for the detection of nonexudative macular neovascularization.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    Article
  15. Article
  16. OCTA: Essential or Gimmick?Ophthalmology and therapy · 2024
    Article
  17. Article
  18. Factors associated with the development of exudation in treatment-naive eyes with nonexudative macular neovascularization.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    Article
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 2 countries.

Rita LaiginhasDepartment of Ophthalmology, CHEDV, Portugal; PDICSS, Faculty of Medicine of the University of Porto, Porto, Portugal.
Jin YangDepartment of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida.
Philip J RosenfeldDepartment of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida.
Manuel FalcãoDepartment of Ophthalmology, Centro Hospitalar e Universitário de São João, Porto, Portugal; Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal. Electronic address: falcao@med.up.pt.
Universidade do Porto · PTUniversity of Miami · US

Funding

Shared Equipment ModuleP30EY014801 · NEI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI Dmitry V Ivanov · 2004 to 2026
$12.2M
NEI NIH HHS P30 EY014801
6 · The paper itself

Abstract

purposeTo review the available literature on the prevalence, incidence, natural history, and exudative conversion rates of subclinical (treatment-naïve) nonexudative macular neovascularization (MNV) in patients with age-related macular degeneration (AMD). CLINICAL RELEVANCE: Nonexudative MNV is now known to be more prevalent in patients with AMD than initially thought and is bringing new insights into both the natural history and management of this very prevalent disease.

methodsWe conducted a literature search on PubMed, Scopus, and Web of Science, along with a manual search, from January 2014 to June 2019. We included studies that used optical coherence tomography angiography (OCTA) as a primary diagnostic tool to evaluate subclinical (treatment-naïve), nonexudative, neovascular AMD.

resultsOf the 258 screened articles, 12 were included. The prevalence of subclinical nonexudative neovascular AMD in the fellow eyes of patients with unilateral exudative AMD ranged from 6.25% to 27%. Although these lesions were not associated with a significant decrease in visual acuity, the presence of nonexudative MNV seems to be an important predictor of exudative disease. Incidence of exudation in the reviewed studies ranged from 20% to 80% (follow-up 6 months to 2 years). There is some evidence that nonexudative MNV may slow down the growth of adjacent geographic atrophy (GA). As long as exudation does not occur, it appears that subclinical nonexudative MNV is not responsible for the deterioration of visual function.

conclusionsNonexudative MNV is an asymptomatic condition. Although nonexudative MNV seems to be a precursor for the formation of exudative neovascular AMD, there is evidence suggesting a protective effect in slowing the progression of GA. Early detection of nonexudative MNV before exudation develops should result in better monitoring of patients who are at high risk of conversion to exudative AMD. Though no controlled clinical trial has been performed to provide definitive recommendations, the authors of the studies included in this review agree that nonexudative lesions should not be treated until symptomatic exudation develops. Moreover, the existence of a nonexudative form of neovascular AMD would suggest that the term "neovascular AMD" should be preceded by either "exudative" or "nonexudative" when describing this neovascular stage of AMD.

Indexed as

Fluorescein AngiographyFundus OculiGlobal HealthHumansMacula LuteaMacular DegenerationPrevalenceRetinal NeovascularizationRetinal VesselsTomography, Optical Coherence

Identifiers

PMID32335033
PMCPMC7354220
OpenAlexW3011851761

What OpenQuestion holds

Textmetadata
LicenceTDM
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.