Evidence map›Paper›PMID 30373555›Full record

Observational studyBMC ophthalmology2018

Central corneal thickness in a Jordanian population and its association with different types of Glaucoma: cross-sectional study.

Sana' Muhsen, Feras Alkhalaileh, Mohammad Hamdan, Saif Aldeen AlRyalat

Open access · goldAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in BMC ophthalmology, 2018. 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
0.6field-weighted citation impact, top 29% 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

2 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Article
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

4 authors at 1 institution in 1 country.

Sana' MuhsenOphthalmology, Glaucoma and Anterior Segment Surgeon, University of Jordan Hospital, The University of Jordan, Amman, Jordan.
Feras AlkhalailehSchool of Medicine, The University of Jordan, Amman, 11942, Jordan.
Mohammad HamdanSchool of Medicine, The University of Jordan, Amman, 11942, Jordan.
Saif Aldeen AlRyalatDepartment of Ophthalmology, University of Jordan Hospital, The University of Jordan, Amman, 11942, Jordan. saifryalat@yahoo.com.ORCID http://orcid.org/0000-0001-5588-9458
University of Jordan · JO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCentral corneal thickness (CCT) has long been implicated to affect glaucoma predisposition. Several reports have identified that thinner CCT is a risk factor for open-angle glaucoma, and that CCT can be very variable between different ethnic groups. In this study, we aim to identify the relation between CCT and different glaucoma parameters in different types of glaucoma in an Arabian ethnicity.

methodsWe classified our participants into four main groups: primary open-angle glaucoma (POAG), primary angle-closure glaucoma (PACG), pseudoexfoliative glaucoma (PXFG), and a control group. We obtained demographics, intraocular pressure (IOP), cup to disc ratio (CDR), visual field mean deviation (MD) and pattern standard deviation (PSD), CCT, and retinal nerve fiber layer (RNFL) thickness for each participant.

resultsWe included A total of 119 eyes with glaucoma, including POAG (54 eyes), PXFG (31 eyes) and PACG (34 eyes), we also included 57 control eyes. We found that PACG eyes have the thinnest CCT. Mean measurements of CCT for our groups were: 538.31 μm (SD = 36.30) in eyes with POAG, 544.45 μm (SD = 28.57) in eyes with PXFG, 506.91 μm (SD = 34.55) in eyes with PACG and 549.63 μm (SD = 42.9) in the control group. We found that CCT is significantly correlated with CDR (p = 0.012, r = - 0.231), MD (p < 0.001, r = 0.327),and RNFL thickness (p = .007, r = .283).

conclusionIn Arabian ethnicity, PACG patients have the thinnest CCT compared to other types of glaucoma, namely POAG and PXFG. We demonstrated that glaucomatous eyes with thinner corneas will probably have more advanced glaucomatous optic neuropathy. Our results emphasize the importance of taking ethnicity into account upon glaucoma management.

Indexed as

Imaging, Three-DimensionalAgedCorneaCross-Sectional StudiesFemaleFollow-Up StudiesGlaucomaGonioscopyHumansIncidenceIntraocular PressureJordanMaleMiddle AgedOptic NerveRetrospective StudiesCentral corneal thicknessEthnicityGlaucoma

Identifiers

PMID30373555
PMCPMC6206916
OpenAlexW2899235935

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.