Evidence map›Paper›PMID 33553835›Full record

ArticleJournal of current ophthalmology

Keratoconus Indices and their Determinants in Healthy Eyes of a Rural Population.

Hassan Hashemi, Reza Pakzad, Samira Heydarian, AbbasAli Yekta, Hadi Ostadimoghaddam, Mahdi Mortazavi, Shahroukh Ramin, Mehdi Khabazkhoob

Open access · diamondAbstract read
In one paragraph

Article in Journal of current ophthalmology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.7field-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

7 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

8 authors at 4 institutions in 1 country.

Hassan HashemiNoor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran.
Reza PakzadNoor Ophthalmology Research Center, Noor Eye Hospital, Tehran, Iran.
Samira HeydarianDepartment of Rehabilitation Sciences, School of Allied Medical Sciences, Mazandaran University of Medical Sciences, Sari, Iran.
AbbasAli YektaDepartment of Optometry, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran.
Hadi OstadimoghaddamRefractive Errors Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
Mahdi MortazaviNoor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran.
Shahroukh RaminDepartment of Optometry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Mehdi KhabazkhoobDepartment of Psychiatric Nursing and Management, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Noor Eye Hospital · IRMashhad University of Medical Sciences · IRShahid Beheshti University of Medical Sciences · IRMazandaran University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo determine the distribution of keratoconus indices in a 5-93-year-old healthy eyes of a rural population in Iran.

methodsIn this cross-sectional study, multi-stage cluster sampling was applied to select subjects from two villages in the north and southwest of Iran. After obtaining informed consent, all subjects underwent ophthalmologic and optometric examinations. Corneal imaging by the Pentacam was done in subjects above 5 years between 9 a.m. and 2 p.m., at least 3 h after wakeup. All subjects who had abnormal keratoconus indices were excluded. Our main outcome was keratometry-flat (K

resultsThe mean ± standard deviation of K

conclusionsThe Keratoconus indices of our study were similar to other studies. Although age, living place, and type of refractive error were associated with some indices, sex was the strongest determinant of Keratoconus indices in a population of healthy eyes.

Indexed as

Anterior-surface indicesCorneal tomographyIranKeratoconus indicesPentacam

Identifiers

PMID33553835
PMCPMC7861110
OpenAlexW2986410638

What OpenQuestion holds

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LicenceCC BY-NC-SA
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.