Evidence map›Paper›PMID 35948688›Full record

Observational studyEye (London, England)2022

Age-related assessment of foveal avascular zone and surrounding capillary networks with swept source optical coherence tomography angiography in healthy eyes.

Aditya Verma, Kowsigan Magesan, T Amose, Ahmed Roshdy Alagorie, Ramya Gnanaraj, SriniVas R Sadda, Parveen Sen

Open access · greenAbstract readObservational Study
In one paragraph

Observational study in Eye (London, England), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

11 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Article
  3. Spatial distribution of Intra-retinal Hyper-reflective foci and impact on progression in eyes with intermediate Age-related macular degeneration.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025
    Article
  4. Article
  5. Article
  6. Observational
  7. Review
  8. Article
  9. Article
  10. Fractal analysis of the macular region in healthy eyes using swept-source optical coherence tomography angiography.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2023
    Observational
  11. 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

7 authors at 4 institutions in 3 countries.

Aditya VermaShri Bhagwan Mahavir VitreoRetinal Services, Medical Research Foundation, Tamil Nadu, India. dradi27@gmail.com.ORCID 0000-0003-3778-8834
Kowsigan MagesanElite School of Optometry, Unit of Medical Research Foundation, Tamil Nadu, India.
T AmoseElite School of Optometry, Unit of Medical Research Foundation, Tamil Nadu, India.
Ahmed Roshdy AlagorieDepartment of Ophthalmology, Faculty of Medicine, Tanta University, Tanta, Egypt.
Ramya GnanarajShri Bhagwan Mahavir VitreoRetinal Services, Medical Research Foundation, Tamil Nadu, India.
SriniVas R SaddaDoheny Eye Institute, Los Angeles, CA, USA.
Parveen SenShri Bhagwan Mahavir VitreoRetinal Services, Medical Research Foundation, Tamil Nadu, India.ORCID 0000-0003-2256-9380
Elite School of Optometry · INSankara Nethralaya · INTanta University · EGUniversity of California, Los Angeles · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo assess the macular capillary networks and foveal avascular zone (FAZ) with swept-source optical coherence tomography angiography in healthy eyes.

methodsThis cross-sectional, prospective, observational study enrolled 222 eyes of 116 healthy participants with no ocular or systemic disease. SS-OCTA images were captured using the PLEX Elite 9000 (Carl Zeiss Meditec Inc., Dublin, CA, USA) with a 6 × 6 mm pattern centered on the foveal center. Vessel length density (VLD), perfusion density (PD), and FAZ parameters were analyzed using the manufacturer's automated software.

resultsA significant negative correlation was observed between age and average VLD in the superficial plexus, and average PD in both the superficial plexus and the whole retina. A significant positive correlation between age and foveal avascular zone perimeter and area was also noted. Age-wise comparisons showed a trend for an increase in VLD and PD until 40 years of age, with a subsequent decrease in the older age in the macular region. The central subfield showed a decrease in the vessel density measurements in the 21-40 age group. FAZ area and perimeter were the mirror inverse of the central subfield vessel density measurements with a numerically greater area and perimeter in the 21-40 age group compared to the 0-20 and 41-60 age groups. FAZ circularity was significantly reduced after 40 years of age.

conclusionAge-related changes in the vessel density and FAZ parameters in the healthy macula are complex and vary with the macular location. These results carry significance when interpreting the data from diseased eyes.

Indexed as

Retinal VesselsTomography, Optical CoherenceAdultCross-Sectional StudiesFluorescein AngiographyFovea CentralisHumansProspective Studies

Identifiers

PMID35948688
PMCPMC9500041
OpenAlexW4291020032

What OpenQuestion holds

Textmetadata
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.