Evidence map›Paper›PMID 40696694›Full record

SynthesisMedicine2025

Efficacy and safety of perfluorohexyloctane (PFHO) in patients with dry eye disease (DED) due to meibomian gland dysfunction (MGD): Systematic review and meta-analysis.

Rabbia Munsab, Rabia Zafar, Anoosha Fatima, Javeria Taj, Muhammad Usman, Muhammad Umair Anjum, Muhammad Hasanain, Pratik Bhattarai

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Medicine, 2025. 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
–field-weighted citation impact
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.

  1. Review
  2. 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

8 authors.

Rabbia MunsabDow Medical College, Karachi, Pakistan.ORCID 0009-0009-5210-3822
Rabia ZafarDow Medical College, Karachi, Pakistan.ORCID 0009-0000-3952-5873
Anoosha FatimaDow Medical College, Karachi, Pakistan.ORCID 0009-0009-7416-4554
Javeria TajDow Medical College, Karachi, Pakistan.ORCID 0009-0005-9865-4719
Muhammad UsmanDow Medical College, Karachi, Pakistan.ORCID 0009-0005-4007-9213
Muhammad Umair AnjumDow Medical College, Karachi, Pakistan.ORCID 0000-0003-2429-515
Muhammad HasanainDow Medical College, Karachi, Pakistan.ORCID 0000-0001-9214-7840
Pratik BhattaraiManipal College of Medical Sciences, Pokhara, Nepal.ORCID 0000-0002-9223-7800

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDry eye disease (DED) associated with meibomian gland dysfunction lacks a conclusive treatment, placing existing solutions under the burden of side effects and limitations. This study seeks to assess the efficacy and safety of perfluorohexyloctane (PFHO) in treating DED associated with meibomian gland dysfunction.

methodsA thorough search encompassing Medline, Cochrane Central Register, and Google Scholar was conducted until September 15, 2023. Four randomized controlled trials were assessed for PFHO's safety and efficacy. Studies were managed with EndNote and Excel for dual-phase screening by reviewers. Bias risk was evaluated with the risk of bias 2.0 Cochrane tool, and comparative outcomes were synthesized using RevMan software.

resultsIn this meta-analysis, we pooled data from 4 randomized controlled trials involving 1754 patients. Significant reductions were observed in total corneal fluorescein staining score mean difference = -0.87 (95% CI -1.06, -0.68, P < .00001), eye dryness score mean difference = -7.73 (95% CI -9.17, -6.29, P < .00001), and central Corneal Fluorescein Staining score risk ratios (RR) = 5.11 (95% CI: 1.75-14.93, P = .003). Subgroup analysis highlighted increasing differences over time, notably at week 8. Safety analysis showed decreased risk of eye pain RR = 0.70 (95% CI: 0.27, 1.80, P = .46) and blurred vision RR = 5.11 (95% CI: 1.75, 14.93, P = .003) with PFHO. There was no significant difference noted in serious adverse events RR = 1.38 (95% CI: 0.25, 7.60, P = .71), ocular TEAS RR = 1.05 (95% CI: 0.81, 1.37, P = .69) and non-ocular TEAS RR = 1.02 (95% CI: 0.75, 1.40, P = .89).

conclusionPFHO marks a novel treatment for DED, targeting tear evaporation with its unique water-free, preservative-free preparation. It has proved to be highly effective in alleviating eye dryness and associated symptoms. While minor side effects are seen in a small subset of patients, the overall safety is promising. Further long-term and larger sample size studies will offer a more thorough understanding of this new drug.

Indexed as

Dry Eye SyndromesFluorocarbonsMeibomian Gland DysfunctionOctanesHumansRandomized Controlled Trials as TopicTreatment OutcomeFluorocarbonsOctanesperfluorohexyl-octanblurred visiondry eye diseaseeye dryness scoreeye painmeibomian gland dysfunctionperfluorohexyloctanetotal corneal fluorescein staining

Identifiers

PMID40696694
PMCPMC12282798

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.