Evidence map›Paper›PMID 34989954›Full record

ArticleInternational ophthalmology2022

Optical coherence tomography angiography of the macular microcirculation in acute primary angle closure treated with phacoemulsification.

Lin Fu, Yau Kei Chan, Jia Fang, Junbo Liu, Shu Mei Wen, Li Jun Shen, Jun Wang, Guan Shun Yu, Li Nie

Abstract read
PubMed Publisher
In one paragraph

Article in International ophthalmology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 37% 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

2 citing papers in PubMed, 4 citations in OpenAlex.

  1. Long-term optic nerve head microvascular impairment after acute primary angle closure: an OCTA study.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Article
  2. 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

9 authors at 2 institutions in 2 countries.

Lin FuSchool of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuanxi Road, Wenzhou, Zhejiang Province, China.ORCID http://orcid.org/0000-0003-3773-7340
Yau Kei ChanDepartment of Ophthalmology, University of Hong Kong, Hong Kong SAR, China.
Jia FangSchool of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuanxi Road, Wenzhou, Zhejiang Province, China.
Junbo LiuSchool of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuanxi Road, Wenzhou, Zhejiang Province, China.
Shu Mei WenSchool of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuanxi Road, Wenzhou, Zhejiang Province, China.
Li Jun ShenSchool of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuanxi Road, Wenzhou, Zhejiang Province, China.
Jun WangSchool of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuanxi Road, Wenzhou, Zhejiang Province, China.
Guan Shun YuSchool of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuanxi Road, Wenzhou, Zhejiang Province, China.
Li NieSchool of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuanxi Road, Wenzhou, Zhejiang Province, China. 26780197@qq.com.ORCID http://orcid.org/0000-0001-5506-347X
Wenzhou Medical University · CNUniversity of Hong Kong · HK

Funding

nature and science foundation of zhejiang province LQ19H120002research initiation project of the eye hospital, school of ophthalmology and optometry, wenzhou medical university KYQD202001
6 · The paper itself

Abstract

purposeTo measure the changes of macular microcirculation in cases with unilateral acute primary angle closure (APAC) who were managed by phacoemulsification.

methodsPatients with unilateral APAC and managed by phacoemulsification were enrolled. The contralateral unaffected eyes were served as fellow group, and normal individuals were recruited as control group. Optical coherence tomography angiography (OCT-A) was performed to analyze the macular whole image vessel density (wiVD) and parafoveal vessel density (pfVD). The retinal nerve fiber layer (RNFL) and ganglion cell complex (GCC) thicknesses were assessed using spectral-domain optical coherence tomography.

resultsA total of 36 APAC patients and 35 eyes from 35 normal individuals were recruited. In the APAC eyes, the mean wiVD (42.1% ± 3.7%) and pfVD (45.2% ± 3.8%) in the superficial layers (wiVD-SL and pfVD-SL) were both significantly reduced, compared to fellow eyes (45.7% ± 3.1%, 48.7% ± 3.1%) and control eyes (44.4% ± 4.7%, 47.4% ± 5.1%) (P < 0.05). They were all statistically correlated with RNFL, GCC, visual field pattern standard deviation (PSD), and mean deviation (MD).

conclusionThe macular OCT-A parameters including wiVD-SL and pfVD-SL were significantly reduced in the eyes with APAC compared to the fellow unaffected eyes and normal control eyes. They were correlated well with RNFL, GCC, PSD and MD. The macular vessel density parameters may help monitor the progression of APAC.

Indexed as

Glaucoma, Open-AngleOptic DiskPhacoemulsificationAngiographyHumansIntraocular PressureMicrocirculationNerve FibersRetinal Ganglion CellsRetinal VesselsTomography, Optical CoherenceAcute primary angle closureMacular microcirculationOCT-APhacoemulsification

Identifiers

PMID34989954
OpenAlexW4225728124

What OpenQuestion holds

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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.