Evidence map›Paper›PMID 33547997›Full record

Trial reportInternational ophthalmology2021

Early changes in retinal microcirculation after uncomplicated cataract surgery using an active-fluidics system.

Yinying Zhao, Dandan Wang, Li Nie, Yuhong Yu, Rui Zou, Zhangliang Li, Mengxiang Xu, Yune Zhao

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in International ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.5field-weighted citation impact, top 20% 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

13 citing papers in PubMed, 14 citations in OpenAlex.

  1. Active-fluidics versus gravity-fluidics in uncomplicated cataract surgery: using optical coherence tomography angiography to estimate early changes in macular and optic disc microcirculation.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 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

8 authors at 1 institution in 1 country.

Yinying ZhaoEye Hospital of Wenzhou Medical University at hanghzou, 618 Fengqi east Road, Hangzhou, 310000, Zhejiang, China.
Dandan WangEye Hospital of Wenzhou Medical University at hanghzou, 618 Fengqi east Road, Hangzhou, 310000, Zhejiang, China.
Li NieEye Hospital of Wenzhou Medical University at hanghzou, 618 Fengqi east Road, Hangzhou, 310000, Zhejiang, China.
Yuhong YuEye Hospital of Wenzhou Medical University at hanghzou, 618 Fengqi east Road, Hangzhou, 310000, Zhejiang, China.
Rui ZouEye Hospital of Wenzhou Medical University at hanghzou, 618 Fengqi east Road, Hangzhou, 310000, Zhejiang, China.
Zhangliang LiEye Hospital of Wenzhou Medical University at hanghzou, 618 Fengqi east Road, Hangzhou, 310000, Zhejiang, China.
Mengxiang XuEye Hospital of Wenzhou Medical University at hanghzou, 618 Fengqi east Road, Hangzhou, 310000, Zhejiang, China.
Yune ZhaoEye Hospital of Wenzhou Medical University at hanghzou, 618 Fengqi east Road, Hangzhou, 310000, Zhejiang, China. zyehzeye@126.com.ORCID 0000-0003-4401-8053
Wenzhou Medical University · CN

Funding

Medical and Health Technology Program of Zhejiang Province 2017KY494[Zhejiang Provincial Key Research and Development Program 2018C03012
6 · The paper itself

Abstract

purposeTo evaluate the early changes in retinal microcirculation after uncomplicated cataract surgery using an active-fluidics system. MATERIALS AND

methodsPatients underwent uncomplicated cataract surgery for both eyes were enrolled. The two eyes of the patients were randomly assigned to two groups, the active-fluidics group and the gravity-fluidics group. One eye using an active-fluidics system, and the other using a gravity-fluidics system. Optical coherence tomography angiography (OCTA) was performed at 1 day, 7 days, 30 days, and 90 days after surgery.

resultsFifty eyes (25 patients) were included in the final analysis. A significantly lower cumulative dissipated energy (CDE), estimated fluid usage (EFU), and total aspiration time (TAT) were observed in the active-fluidics group (all P<0.05). The superficial vessel density at parafoveal region increased at 7 days and 30 days after cataract surgery in the eyes of both the active-fluidics and gravity-fluidics groups, with the fluctuation in eyes of the gravity-fluidics group more significant. The vessel density of deep capillary plexus remained stable during the follow-up period. Significant changes of retinal thickness in macular region (fovea, parafovea) were observed in eyes of the gravity-fluidics group through the comparison of corresponding values at different time points (p = 0.008, 0.005). No significant change in retinal thickness was observed in eyes of the active-fluidics.

conclusionsRetinal microcirculation and thickness were disturbed after cataract surgery using the gravity-fluidics infusion system. The active-fluidics system not only improved the surgical efficacy but also protected the retinal vasculature during cataract surgery. CLINICAL TRIALS REGISTRATION: The study has been registered at www.clinicaltrials.gov with its clinical trial accession number of NCT0130500.

Indexed as

CataractRetinal VesselsFluorescein AngiographyHumansMicrocirculationTomography, Optical CoherenceVisual AcuityActive-fluidicsCataract surgeryOptical coherence tomography angiographyRetinal microcirculation

Identifiers

PMID33547997
OpenAlexW3127555240

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.