Evidence map›Paper›PMID 27794427›Full record

ArticleAmerican journal of ophthalmology2017

Choriocapillaris Nonperfusion is Associated With Poor Visual Acuity in Eyes With Reticular Pseudodrusen.

Peter L Nesper, Brian T Soetikno, Amani A Fawzi

Abstract read
In one paragraph

Article in American journal of ophthalmology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed, 1 pooled it
14.9field-weighted citation impact, top 1% 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

79 citing papers in PubMed, 1 synthesis or guideline pooled it, 127 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. 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
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  7. Optical coherence tomography angiography suggests choriocapillaris perfusion deficit as etiology of acute macular neuroretinopathy.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    Article
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19 more citing papers are in PubMed but not listed here.

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

3 authors at 1 institution in 1 country.

Peter L NesperDepartment of Ophthalmology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Brian T SoetiknoDepartment of Ophthalmology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois; Medical Scientist Training Program, Feinberg School of Medicine, Northwestern University, Chicago, Illinois; Functional Optical Imaging Laboratory, Department of Biomedical Engineering, Northwestern University, Chciago, Illinois.
Amani A FawziDepartment of Ophthalmology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois. Electronic address: afawzimd@gmail.com.
Northwestern University · US

Funding

Functional Retinal Imaging to Monitor Pharmaco-Therapies in Diabetic RetinopathyDP3DK108248 · NIDDK · NORTHWESTERN UNIVERSITY AT CHICAGO · PI FAWZI, AMANI A, ZHANG, HAO F · 2015 to 2015
$1.9M
Oxygen delivery and metabolism in diabetic retinopathy using visible-light optical coherence tomographyF30EY026472 · NEI · NORTHWESTERN UNIVERSITY · PI SOETIKNO, BRIAN THEODORE · 2016 to 2020
$193k
NEI NIH HHS F30 EY026472NIDDK NIH HHS DP3 DK108248
6 · The paper itself

Abstract

purposeTo study choriocapillaris blood flow in age-related macular degeneration (AMD) using optical coherence tomography angiography (OCTA) and study its correlation to visual acuity (VA) in eyes with reticular pseudodrusen (RPD) vs those with drusen without RPD (drusen).

designCross-sectional study.

methodsPatients with either drusen or RPD in early AMD underwent OCTA imaging of the superior, inferior, and/or nasal macula. We quantified "percent choriocapillaris area of nonperfusion" (PCAN) in eyes with RPD vs those with drusen. We assessed the repeatability of PCAN and its correlations with VA.

resultsTwenty-nine eyes of 26 patients with RPD and 21 eyes of 16 age-matched AMD patients with drusen were included. Qualitatively, the choriocapillaris in areas with RPD showed focal dark regions without flow signal on OCTA (nonperfusion). The repeatability coefficient of PCAN was 0.49%. Eyes with RPD had significantly greater PCAN compared with eyes with drusen (7.31% and 3.88%, respectively; P < .001). We found a significant correlation between PCAN and VA for the entire dataset (r = 0.394, P = .005). When considering eyes with RPD separately, this correlation was stronger (r = 0.474, P = .009) but lost significance when considering eyes with drusen separately (r = 0.175, P = .45).

conclusionsEyes with RPD have significantly larger areas of choriocapillaris nonperfusion compared with eyes with drusen and no RPD. The correlation between PCAN and VA in this RPD population provides a potential mechanistic explanation for vision compromise in RPD compared with other forms of drusen in AMD.

Indexed as

Visual AcuityAgedAged, 80 and overCapillariesChoroidCross-Sectional StudiesFemaleFluorescein AngiographyFundus OculiHumansMaleRegional Blood FlowRetinal DrusenSeverity of Illness IndexTomography, Optical CoherenceVision Disorders

Identifiers

PMID27794427
PMCPMC5253325
OpenAlexW2543173007

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.