Evidence map›Paper›PMID 34677570›Full record

Observational studyInvestigative ophthalmology & visual science2021

Posterior Vitreous Detachment in Normal Healthy Subjects Younger Than Age Twenty.

Ayumi Hayashi, Yoko Ito, Yuki Takatsudo, Naoto Hara, Peter L Gehlbach, Keisuke Mori

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in Investigative ophthalmology & visual science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

3 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Article
  3. 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 at 2 institutions in 2 countries.

Ayumi HayashiDepartment of Ophthalmology, International University of Health and Welfare, Nasushiobara-shi, Tochigi, Japan.
Yoko ItoDepartment of Ophthalmology, International University of Health and Welfare, Nasushiobara-shi, Tochigi, Japan.
Yuki TakatsudoDepartment of Ophthalmology, International University of Health and Welfare, Nasushiobara-shi, Tochigi, Japan.
Naoto HaraDepartment of Ophthalmology, International University of Health and Welfare, Nasushiobara-shi, Tochigi, Japan.
Peter L GehlbachWilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States.
Keisuke MoriDepartment of Ophthalmology, International University of Health and Welfare, Nasushiobara-shi, Tochigi, Japan.
International University of Health and Welfare · JPJohns Hopkins University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: To describe the initiation of posterior vitreous detachment (PVD) in the eyes of normal individuals, under 20 years of age, using wide-angle optical coherence tomography (OCT). Methods: This is an observational cross-sectional study. Montaged images of horizontal and vertical OCT scans were obtained in 63 healthy eyes of 35 consecutive subjects ranging in age from 4 to 17 years. Results: Forty-five eyes (71.4%) had obvious PVD, defined as a contiguous line of posterior cortical vitreous separated from the surface of the retina. Eighteen eyes (28.6%) had no PVD. The mean age of the individuals without PVD was significantly younger than those with PVD (P = 0.008). The spatial distribution of PVD initiation was highest in the superior quadrants, with the nasal, inferior, septum papillomaculae, and temporal quadrants following in descending order of frequency (P < 0.001). PVD was observed to begin anterior to the premacular liquefied lacuna, where the vitreous gel directly adheres to the vitreoretinal interface. In the majority of subjects (80.6%), PVD was initiated anterior to the vascular arcades. Conclusions: PVD can be observed by OCT to begin in the first and second decade of life. It begins in the mid-peripheral vitreous, most frequently in the superior quadrants anterior to the vascular arcades. In this study, all PVDs originated outside of the macular liquefied lacunae, where the vitreous gel adheres directly to the retina.

Indexed as

AdolescentAge FactorsChildChild, PreschoolCross-Sectional StudiesDisease ProgressionFemaleHealthy VolunteersHumansMacula LuteaMaleOphthalmoscopyRetrospective StudiesTomography, Optical CoherenceVitreous BodyVitreous Detachment

Identifiers

PMID34677570
PMCPMC8543394
OpenAlexW3207303298

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.