Evidence map›Paper›PMID 33754236›Full record

ArticleInternational ophthalmology2021

Corneal and lens densitometry in patients with vernal keratoconjunctivitis.

Yusuf Cem Yılmaz, Sefik Can Ipek, Muhammet Derda Ozer

Open access · bronzeAbstract read
In one paragraph

Article in International ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 27% 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, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.

  1. Vernal Keratoconjunctivitis: A Systematic Review.Clinical reviews in allergy & immunology · 2023
    Pooled it
  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

3 authors at 1 institution in 1 country.

Yusuf Cem YılmazOphthalmology Department, Agri State Hospital, Agrı, Turkey.
Sefik Can IpekOphthalmology Department, Agri State Hospital, Agrı, Turkey.
Muhammet Derda OzerOphthalmology Department, Faculty of Medicine, Van Yuzuncu Yil University, Tusba, Van, 65080, Turkey. muhammetderda@gmail.com.ORCID http://orcid.org/0000-0002-3954-270X
Van Yüzüncü Yıl Üniversitesi · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo evaluate corneal and crystalline lens densitometry in patients with vernal keratoconjunctivitis (VKC).

methodsThis is a case-control study. Patients with VKC and age-gender-matched healthy controls underwent a complete ophthalmologic examination with corneal and crystalline lens densitometry measurements. Additionally, the anterior chamber parameters comprise anterior and posterior K

resultsOne hundred and nine eyes were included in the study, in which fifty-one were in the VKC group. There were 25 males in the VKC group (26 female) and 22 males in the control group (36 female). A statistically significant difference was found between the groups in terms of posterior corneal astigmatism (p = 0.02). The mean corneal pachymeter, CV, ACD, ACA, and ACV were similar in both groups (p = 0.63, p = 0.26, p = 0.60, p = 0.41, and p = 0.32, respectively). The total mean corneal densitometry in the zones extending from 6 to 10 mm and 10 to 12 mm was increased in the VKC group compared to the control group (p = 0.04 and p = 0.012, respectively). The mean crystalline lens was found to be denser in the VKC group compared to the control group (8.96 ± 1.6 vs. 8.5 ± 0.57, respectively, p = 0.04).

conclusionPosterior corneal astigmatism is increased in VKC cases in comparison with age- and gender-matched controls. The peripheral anterior 6-12 mm annular corneal zone showed increased corneal densitometry in VKC cases compared to the healthy subjects. Additionally, the lens clarity is found to be decreased subclinically in VKC cases compared to control cases.

Indexed as

Conjunctivitis, AllergicLens, CrystallineCase-Control StudiesCorneaDensitometryFemaleHumansMaleAnterior chamber angleAnterior chamber depthAnterior chamber volumeCorneal densitometryCorneal volumeCrystalline lens densitometryPachymeterVernal keratoconjunctivitis

Identifiers

PMID33754236
PMCPMC7983973
OpenAlexW3138880335

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.