Evidence map›Paper›PMID 33665367›Full record

ArticleBMJ open ophthalmology2021

Quantification of the peripheral vitreous after vitreous shaving using intraoperative optical coherence tomography.

Koichi Nishitsuka, Katsuhiro Nishi, Hiroyuki Namba, Yutaka Kaneko, Hidetoshi Yamashita

Open access · goldAbstract read
In one paragraph

Article in BMJ open ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

6 citing papers in PubMed, 8 citations in OpenAlex.

  1. How much vitrectomy is enough? A narrative review.International journal of ophthalmology · 2026
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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

5 authors at 1 institution in 1 country.

Koichi NishitsukaDepartment of Ophthalmology and Visual Sciences, Yamagata University Faculty of Medicine, Yamagata, Japan.ORCID 0000-0003-2394-9561
Katsuhiro NishiDepartment of Ophthalmology and Visual Sciences, Yamagata University Faculty of Medicine, Yamagata, Japan.
Hiroyuki NambaDepartment of Ophthalmology and Visual Sciences, Yamagata University Faculty of Medicine, Yamagata, Japan.
Yutaka KanekoDepartment of Ophthalmology and Visual Sciences, Yamagata University Faculty of Medicine, Yamagata, Japan.
Hidetoshi YamashitaDepartment of Ophthalmology and Visual Sciences, Yamagata University Faculty of Medicine, Yamagata, Japan.
Yamagata University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the technique of peripheral vitreous shaving during vitrectomy, we measured the residual peripheral vitreous using intraoperative optical coherence tomography (iOCT). METHODS AND ANALYSIS: This retrospective study included 44 eyes that underwent 25-gauge pars plana vitrectomy with iOCT by a single surgeon. In all cases, the surgery was performed via ocular indentation. Cases in group A were treated with vitreous shaving under slit lamp microscope illumination, whereas cases in group B were treated with vitreous shaving under a wide-angle viewing system. Residual peripheral posterior vitreous-cortex detachment (PVD) was quantified by iOCT.

resultsiOCT image analysis enabled the visualisation of the angle formed between the retina and peripheral PVD around the vitreous base in all cases. After the completion of vitreous shaving, the mean length of the peripheral PVD was shorter in group A (961.7±214.7 µm) compared with group B (1925.3.7 ± 626.1 µm; p<0.01).

conclusioniOCT enabled the quantification of the residual peripheral vitreous after vitreous shaving. The quantification of the residual peripheral vitreous after different shaving procedures will be important for advocating appropriate vitreous shaving in future.

Indexed as

retinavitreous

Identifiers

PMID33665367
PMCPMC7893662
OpenAlexW3129807181

What OpenQuestion holds

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Registered trials

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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.