Evidence map›Paper›PMID 30029621›Full record

Trial reportBMC ophthalmology2018

Comparative study of inverted internal limiting membrane (ILM) flap and ILM peeling technique in large macular holes: a randomized-control trial.

Naresh Babu Kannan, Piyush Kohli, Haemoglobin Parida, O O Adenuga, Kim Ramasamy

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC ophthalmology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 7 pooled it
6.6field-weighted citation impact, top 3% 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

41 citing papers in PubMed, 7 syntheses or guidelines pooled it, 91 citations in OpenAlex.

  1. Role of autologous platelet-rich plasma for recurrent or refractory macular hole in the era of various flap techniques: a meta-analysis.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

5 authors at 1 institution in 1 country.

Naresh Babu KannanDepartment of Vitreo-retinal services, Aravind Eye Hospital and Post graduate Institute of Ophthalmology, Madurai, Tamil Nadu, India. cauveryeye@gmail.com.
Piyush KohliDepartment of Vitreo-retinal services, Aravind Eye Hospital and Post graduate Institute of Ophthalmology, Madurai, Tamil Nadu, India.
Haemoglobin ParidaDepartment of Vitreo-retinal services, Aravind Eye Hospital and Post graduate Institute of Ophthalmology, Madurai, Tamil Nadu, India.
O O AdenugaDepartment of Vitreo-retinal services, Aravind Eye Hospital and Post graduate Institute of Ophthalmology, Madurai, Tamil Nadu, India.
Kim RamasamyDepartment of Vitreo-retinal services, Aravind Eye Hospital and Post graduate Institute of Ophthalmology, Madurai, Tamil Nadu, India.
Aravind Eye Hospital · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe anatomical success rate of macular hole surgery ranges around 93-98%. However, the prognosis of large macular holes is generally poor. The study was conducted to compare the anatomical and visual outcomes of Internal Limiting Membrane (ILM) peeling vis-a-vis inverted ILM flap for the treatment of idiopathic large Full-Thickness Macular Holes (FTMH).

methodsThis was a prospective randomized control trial. The study included patients with idiopathic FTMH, with a minimum diameter ranging from 600 to 1500 μm. The patients were randomized into Group A (ILM peeling) and Group B (inverted ILM flap). The main outcome measures were anatomical and visual outcome at the end of 6 months. Anatomical success was defined as flattening of macular hole with resolution of the subretinal cuff of fluid and neurosensory retina completely covering the fovea.

resultsThere were 30 patients in each group. The mean minimum diameters in Group A and B were 759.97 ± 85.01 μm and 803.33 ± 120.65 μm respectively (p = 0.113). The mean base diameter in group A and B was 1304.50 ± 191.59 μm and 1395.17 ± 240.56 μm respectively (p = 0.112). The anatomical success rates achieved in Group A and B were 70.0 and 90.0% respectively (p = 0.125). The mean best-corrected visual acuity (BCVA) after 6 months was logMAR 0.65 ± 0.25 (Snellen equivalent, 20/89) in Group A and logMAR 0.53 ± 0.20 (Snellen equivalent, 20/68) in Group B (p = 0.060). The mean improvement in BCVA was 1.4 lines and 2.1 lines in groups A and B respectively (p = 0.353). BCVA≥20/60 was achieved by 13.3 and 20.0% in group A and B respectively (p = 0.766).

conclusionThe anatomical and functional outcome of Inverted ILM flap technique in large FTMH is statistically similar to that seen in conventional ILM peeling.

trial registrationClinical Trials Registry - India (Indian Medical Research) CTRI/2017/11/010474 .

Indexed as

Surgical FlapsVisual AcuityAdultAgedBasement MembraneFemaleFollow-Up StudiesFovea CentralisHumansMaleMiddle AgedProspective StudiesRetinal PerforationsTomography, Optical CoherenceTreatment OutcomeVitrectomy600 μmInverted ILM flapLarge macular holeMuller cellsType 1 closure

Identifiers

PMID30029621
PMCPMC6054750
OpenAlexW2883383233

What OpenQuestion holds

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LicenceCC BY
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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.