Evidence map›Paper›PMID 34234402›Full record

ArticleClinical ophthalmology (Auckland, N.Z.)2021

Intense Pulsed Plus Low-Level Light Therapy in Meibomian Gland Dysfunction.

Ana Marta, Pedro Manuel Baptista, João Heitor Marques, Daniel Almeida, Diana José, Paulo Sousa, Irene Barbosa

Open access · goldAbstract read
In one paragraph

Article in Clinical ophthalmology (Auckland, N.Z.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 6% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

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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

7 authors at 1 institution in 1 country.

Ana MartaDepartment of Ophthalmology, Centro Hospitalar Universitário do Porto (CHUPorto), Oporto, Portugal.ORCID 0000-0003-3495-4649
Pedro Manuel BaptistaDepartment of Ophthalmology, Centro Hospitalar Universitário do Porto (CHUPorto), Oporto, Portugal.ORCID 0000-0001-8285-1084
João Heitor MarquesDepartment of Ophthalmology, Centro Hospitalar Universitário do Porto (CHUPorto), Oporto, Portugal.ORCID 0000-0001-6487-7950
Daniel AlmeidaDepartment of Ophthalmology, Centro Hospitalar Universitário do Porto (CHUPorto), Oporto, Portugal.
Diana JoséDepartment of Ophthalmology, Centro Hospitalar Universitário do Porto (CHUPorto), Oporto, Portugal.ORCID 0000-0002-8415-0780
Paulo SousaDepartment of Ophthalmology, Centro Hospitalar Universitário do Porto (CHUPorto), Oporto, Portugal.
Irene BarbosaDepartment of Ophthalmology, Centro Hospitalar Universitário do Porto (CHUPorto), Oporto, Portugal.ORCID 0000-0001-6053-5339
Universidade do Porto · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo analyse the clinical outcome in patients with meibomian gland dysfunction (MGD) who underwent intense pulsed light (IPL) plus low-level light therapy (LLL). MATERIALS AND

methodsThe prospective non-comparative study included identified by MGD patients with altered interferometry and lower loss area of the meibomian glands (LAMG), who underwent IPL plus LLL, between July 2020 and August 2020. A multimodal assessment was performed before, 2-3 weeks, and 6 months after treatment. The main outcome was lipid layer thickness (LLT) and the secondary outcomes were the ocular surface disease index (OSDI) score, presence of corneal fluorescein staining (CFS), blink rate (BR), Schirmer test (ST), tear meniscus height (TMH), tear osmolarity (OSM), non-invasive break-up time (NIBUT) and LAMG.

resultsThis study included 62 eyes of 31 patients, 61.3% female, with a mean age of 66.94±9.08 years at the time of IPL plus LLL treatment. LLT (<0.001) grades improved 6 months after treatment. The mean OSDI score improved (p<0.001) from 45.02±21.17 (severe symptoms) to 22.35±17.68 (moderate symptoms) at 2-3 weeks and 8.24±17.9.91 (normal) at 6 months after treatment. CFS was identified in 51.6% (32/62) before and in 45.2% (28/62) 6 months (p=0.293) after treatment. ST (p=0.014) grades improved; OSM grades mild worsened (p<0.001); TMH, NIBUT and LAMG grades did not modify 6 months after treatment. No patient suffered any adverse effects.

conclusionIPL combined with LLL was effective and safe, improving the lipid layer thickness in MGD and decreasing the level of symptoms.

Indexed as

dry eye diseaseintense pulsed lightlevel low light treatmentlipid layer thicknessmeibomian gland dysfunctionOSDI

Identifiers

PMID34234402
PMCPMC8253890
OpenAlexW3177163352

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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.