Evidence map›Paper›PMID 29808573›Full record

ArticleClinical & experimental ophthalmology2018

Safety and effectiveness of primary transscleral diode laser cyclophotoablation for glaucoma in Nigeria.

Mohammed M Abdull, David C Broadway, Jennifer Evans, Fatima Kyari, Fatima Muazu, Clare Gilbert

Open access · hybridAbstract read
In one paragraph

Article in Clinical & experimental ophthalmology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

5 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Management of chronic open-angle glaucoma.Community eye health · 2021
    Article
  5. Management of painful blind eye in Africa: A review.Journal of the West African College of Surgeons
    Review
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 4 institutions in 2 countries.

Mohammed M AbdullOphthalmology Department, Abubakar Tafawa Balewa University Teaching Hospital, Bauchi, Nigeria.ORCID 0000-0003-1577-9291
David C BroadwayDirectorate of Ophthalmology, Norwich and Norfolk University Hospital NHS Foundation Trust, Norwich, UK.
Jennifer EvansDepartment of Clinical Research, London School of Hygiene and Tropical Medicine, London, UK.
Fatima KyariDepartment of Clinical Research, London School of Hygiene and Tropical Medicine, London, UK.
Fatima MuazuOphthalmology Department, Abubakar Tafawa Balewa University Teaching Hospital, Bauchi, Nigeria.
Clare GilbertDepartment of Clinical Research, London School of Hygiene and Tropical Medicine, London, UK.
Abubakar Tafawa Balewa University · NGLondon School of Hygiene & Tropical Medicine · GBBaze University · NGNorfolk and Norwich University Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

importanceTo investigate the safety, effectiveness and follow-up rates after transscleral diode laser cyclophotocoagulation as primary treatment for seeing eyes with primary open angle glaucoma in Bauchi, Nigeria.

backgroundThere is a high prevalence of primary open angle glaucoma in Africa where adherence to medical treatment and acceptance of surgery are poor.

designProspective case series.

participantsNew glaucoma patients where surgical intervention was recommended.

methodsA diode 810 nm laser G-probe was used under retrobulbar anaesthesia to deliver approximately 20 shots for 2000 ms, titrating the power. If both eyes were treated the first was the study eye. Repeat treatment offered if the intraocular pressure (IOP) was >21 mmHg on two consecutive visits.

main outcome measuresIOP < 22 mmHg, change in ≥2 lines of Snellen visual acuity (VA), and complications.

results201 out of 204 eyes with complete data analysed. Mean age 52 years, 17 (8.3%) eyes were re-treated. Mean pre-treatment IOP was 39 (SD 11) mmHg. 106 (53%) attended at 12 months when the mean IOP was 19 (7-45) mmHg; 77 (73%) had IOP < 22 mmHg. VAs were better in 13 (12.3%) and worse in 23 (21.7%) eyes. Postoperative complications included mild uveitis (5.5%), corneal oedema (2.5%), severe uveitis (0.5%) and transient hypotony (2.0%). No hypotony at 12 months. CONCLUSIONS AND RELEVANCE: Transscleral diode laser cyclophotocoagulation controlled IOP in almost three quarters of eyes at 12 months with short-term preservation of vision and minimal complications. Poor follow-up in this setting highlights the need for an effective, safe and acceptable treatment where regular follow-up is less critical.

Indexed as

AdolescentAdultAgedAged, 80 and overChildCiliary BodyFemaleFollow-Up StudiesGlaucoma, Open-AngleHumansIntraocular PressureLaser CoagulationLasers, SemiconductorMaleMiddle AgedNigeriaAfricacyclophotocoagulationdiode laserglaucoma

Identifiers

PMID29808573
PMCPMC6585748
OpenAlexW2807312195

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.