Evidence map›Paper›PMID 38435373›Full record

ArticleClinical ophthalmology (Auckland, N.Z.)2024

A Preservative-Free Approach - Effects on Dry Eye Signs and Symptoms After Cataract Surgery.

Per Jensen, Christian Nilsen, Morten Gundersen, Kjell Gunnar Gundersen, Rick Potvin, Parisa Gazerani, Xiangjun Chen, Tor P Utheim, Øygunn A Utheim

Open access · goldAbstract read
In one paragraph

Article in Clinical ophthalmology (Auckland, N.Z.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
4.9field-weighted citation impact, top 5% 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

6 citing papers in PubMed, 9 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

9 authors at 3 institutions in 1 country.

Per JensenIfocus Eye Clinic, Haugesund, Norway.ORCID 0000-0002-0050-1708
Christian NilsenIfocus Eye Clinic, Haugesund, Norway.
Morten GundersenIfocus Eye Clinic, Haugesund, Norway.ORCID 0009-0000-2867-3336
Kjell Gunnar GundersenIfocus Eye Clinic, Haugesund, Norway.ORCID 0000-0002-1003-0225
Rick PotvinScience in Vision, Frisco, TX, USA.ORCID 0000-0003-0964-5035
Parisa GazeraniFaculty of Health Sciences, Oslo Metropolitan University, Oslo, Norway.ORCID 0000-0003-0109-3600
Xiangjun ChenDepartment of Medical Biochemistry, Oslo University Hospital, Oslo, Norway.ORCID 0000-0003-0331-9028
Tor P UtheimFaculty of Health Sciences, Oslo Metropolitan University, Oslo, Norway.
Øygunn A UtheimDepartment of Medical Biochemistry, Oslo University Hospital, Oslo, Norway.ORCID 0000-0002-0097-4070
Privatsykehuset Haugesund · NOOslo University Hospital · NOOsloMet – Oslo Metropolitan University · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: To compare the effect of treatment with preservative-free dexamethasone, NSAIDs and trehalose/hyaluronic acid eye drops with the preservative benzalkonium chloride containing dexamethasone and NSAIDs after cataract surgery in dry versus non-dry eyes. Patients and Methods: In this prospective randomized intervention study, dry eye tests were performed before and 6 weeks after cataract surgery. Patients were considered as having dry eye, SDE (sign of dry eye), if at least one of the following dry eye tests were abnormal; corneal fluorescein staining (CFS), non-invasive keratograph breakup time (NIKBUT) or tear osmolarity. Patients with SDE were randomly assigned to one of two groups. Group 1 patients were treated with dexamethasone and bromfenac eye drops with the preservative benzalkonium chloride (BAC). Group 2 patients were treated with preservative-free dexamethasone and preservative-free diclofenac, as well as a preservative-free lubricant with trehalose and hyaluronic acid both before and after surgery. Patients with normal tear film status acted as the control group (group 3) and received same treatment as group 1. Results: A total of 215 patients were enrolled six weeks after surgery, the number of patients with SDE decreased significantly in groups 1 and 2 (p <0.001). Subjective symptoms and objective measures including osmolarity, NIKBUT, CFS, and tear film thickness (TFT) improved after surgery, tear production remained unchanged, while corneal sensitivity and meibomian gland dysfunction (MGD) parameters worsened. In the control group with normal tear-film status, SDE increased significantly after the surgery (p <0.001). There were no statistically significant differences in tear film parameters between the three groups after surgery. Conclusion: After cataract surgery, patients with mild to moderate dry eyes may experience improved tear film status and reduced symptoms. However, we found no additional beneficial effect on dry eye parameters with treatment with preservative-free dexamethasone, NSAIDs, and lubricants compared to preservative-containing eye drops.

Indexed as

cataract surgerycorneal fluorescein stainingmeibomian gland dysfunctionnon-invasive keratograph tear break-up timeocular surface disease indexosmolaritysign of dry eye

Identifiers

PMID38435373
PMCPMC10906276
OpenAlexW4392170426

What OpenQuestion holds

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LicenceCC BY-NC
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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.