Evidence map›Paper›PMID 25270194›Full record

ArticleInvestigative ophthalmology & visual science2014

The association between the foveal avascular zone and retinal thickness.

Toco Y P Chui, Dean A VanNasdale, Ann E Elsner, Stephen A Burns

Abstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

66 citing papers in PubMed.

  1. Individualized FAZ morphometry and standardized peri-FAZ vascular density: a pilot AngioVue OCTA study in diabetic retinopathy.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Article
  2. Association and Multimodal Model of Retinal Mid-Peripheral Capillary Free Zones with Structural and Functional Parameters in Diabetic Patients Without Clinical Retinopathy.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
    Article
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  13. Central macular OCTA parameters in glaucoma.The British journal of ophthalmology · 2023
    Article
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  18. Long-term retinal imaging of a case of suspected congenital rubella infection.American journal of ophthalmology case reports · 2022
    Article
  19. Article
  20. Cone Photoreceptors in Diabetic Patients.Frontiers in medicine · 2022
    Article

6 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

4 authors.

Toco Y P ChuiSchool of Optometry, Indiana University, Bloomington, Indiana, United States.
Dean A VanNasdaleSchool of Optometry, Indiana University, Bloomington, Indiana, United States.
Ann E ElsnerSchool of Optometry, Indiana University, Bloomington, Indiana, United States.
Stephen A BurnsSchool of Optometry, Indiana University, Bloomington, Indiana, United States.

Funding

Optics Instrumentation for Advanced Ophthalmic ImagingR01EY014375 · NEI · UNIVERSITY OF ROCHESTER · PI WILLIAMS, DAVID R · 2003 to 2012
$14.9M
INVESTIGATIONS OF HUMAN CONE PIGMENT KINETICSR01EY004395 · NEI · TRUSTEES OF INDIANA UNIVERSITY · PI BURNS, STEPHEN A · 1985 to 2014
$5.7M
SPATIAL EXTENT OF RETINAL DAMAGER01EY007624 · NEI · TRUSTEES OF INDIANA UNIVERSITY · PI ELSNER, ANN E · 1995 to 2012
$4.4M
Adaptive Optics Imaging of Human Retinal Vascular Structure and FunctionR01EY024315 · NEI · TRUSTEES OF INDIANA UNIVERSITY · PI BURNS, STEPHEN A · 2015 to 2024
$4.3M
Low-Cost Device for Digital Retinal ImagingR01EB002346 · NIBIB · TRUSTEES OF INDIANA UNIVERSITY · PI ELSNER, ANN E · 2003 to 2010
$3.1M
Core Support for Vision Research at Indiana UniversityP30EY019008 · NEI · TRUSTEES OF INDIANA UNIVERSITY · PI BURNS, STEPHEN A · 2009 to 2013
$2.1M
Early Retinal Disease Detection Using Standard And Novel Retinal Imaging TechniquK23EY017886 · NEI · TRUSTEES OF INDIANA UNIVERSITY · PI VANNASDALE, DEAN ALLAN · 2007 to 2011
$715k
Low-Cost Device for Digital Retinal ImagingR56EB002346 · NIBIB · TRUSTEES OF INDIANA UNIVERSITY · PI ELSNER, ANN E · 2007 to 2007
$374k
NEI NIH HHS K23 EY017886NEI NIH HHS P30 EY019008NEI NIH HHS R01 EY004395NEI NIH HHS R01 EY007624NEI NIH HHS R01 EY014375NEI NIH HHS R01 EY024315NIBIB NIH HHS R01 EB002346NIBIB NIH HHS R56 EB002346
6 · The paper itself

Abstract

purposeTo investigate the association between the size and shape of the foveal avascular zone and retinal thickness in healthy subjects.

methodsIn vivo imaging of the foveal microvasculature was performed on 32 subjects by using an adaptive optics scanning laser ophthalmoscope (AOSLO). Motion contrast maps of the AOSLO images were used to generate a montage revealing the foveal capillary network. Foveal avascular zone (FAZ) diameters along the horizontal (FAZH) and vertical (FAZV) meridians were measured on the montages. An asymmetry index (AI) of the FAZ was then computed as the ratio of the FAZH to FAZV. Retinal thickness was investigated by using spectral-domain optical coherence tomography (SDOCT). Inner retinal layer (INLFAZ) thickness and outer nuclear layer (ONLFAZ) thickness were measured at the edges of the FAZ on the horizontal and vertical SDOCT scans on the same eye.

resultsThe foveal capillary network was readily visualized in all subjects. As expected there was individual variation in the size and shape of the FAZ. Along the horizontal and vertical meridians, the mean±SD (μm) of the FAZ diameter was 607±217 and 574±155, respectively. The INLFAZ thickness was 68±9 and 66±9, and the ONLFAZ thickness was 103±13 and 105±11, respectively. The mean±SD of the AI was 1.03±0.27. The difference between FAZH and FAZV decreases with increasing FAZ area (P=0.004). Mean ONLFAZ was negatively correlated with FAZ effective diameter (P<0.0001). No significant correlation was found between mean INLFAZ and FAZ effective diameter (P=0.16).

conclusionsDespite large individual variations in size and shape of the FAZ, the INLFAZ has a relatively constant thickness at the margins of the FAZ, suggesting the presence of retinal capillaries is needed to sustain an INLFAZ thickness greater than 60 μm. A smaller FAZ area is associated with a vertically elongated FAZ.

Indexed as

AdultFemaleFluorescein AngiographyFovea CentralisFundus OculiHealthy VolunteersHumansMacula LuteaMaleMiddle AgedOphthalmoscopyRetinal VesselsTomography, Optical CoherenceYoung Adultadaptive optics scanning laser ophthalmoscopefoveal avascular zoneretinal capillariesretinal thicknessspectral-domain optical coherence tomography

Identifiers

PMID25270194
PMCPMC4214206

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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.