Evidence map›Paper›PMID 30323998›Full record

ArticleTranslational vision science & technology2018

Iris Color and Lens Thickness in Chinese Teenagers.

Chen-Wei Pan, Ou Zhang, Dan-Ning Hu, Rong-Kun Wu, Jun Li, Hua Zhong, Min Hu

Open access · goldAbstract read
In one paragraph

Article in Translational vision science & technology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.5field-weighted citation impact, top 32% 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

3 citing papers in PubMed, 5 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

7 authors at 5 institutions in 2 countries.

Chen-Wei PanSchool of Public Health, Medical College of Soochow University, Suzhou, China.
Ou ZhangDepartment of General Medicine, Kunming Children's Hospital, Kunming, China.
Dan-Ning HuNew York Eye and Ear Infirmary at Mount Sinai, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Rong-Kun WuSchool of Public Health, Medical College of Soochow University, Suzhou, China.
Jun LiDepartment of Ophthalmology, the Second People's Hospital of Yunnan Province, Kunming, China.
Hua ZhongDepartment of Ophthalmology, the First Affiliated Hospital of Kunming Medical University, Kunming, China.
Min HuDepartment of Ophthalmology, the Second People's Hospital of Yunnan Province, Kunming, China.
Second People's Hospital of Yunnan Province · CNSoochow University · CNFirst Affiliated Hospital of Kunming Medical University · CNKunming Children's Hospital · CNNew York Eye and Ear Infirmary · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe aimed to determine the association of iris color with lens thickness (LT) in a school-based sample of Chinese teenagers.

methodsIn total, 2346 grade 7 students, from 10 middle schools, aged 13 to 14 years in Mojiang located in Southwestern China were included in the analysis. A grading system was developed to assess iris color based on standardized slit-lamp photographs. LT was measured by the LenStar LS900. Refractive error was measured after cycloplegia using an autorefractor and ocular biometric parameters, including axial length (AL), were measured using an IOL Master.

resultsThere was a significant trend of decreasing LTs with darker iris color. On average, eyes with "grade 1" (the lightest) iris color, when compared with those with "grade 5" (the darkest), had greater LTs (mean difference, 0.1 mm). After adjusting for other potential confounders including sex, height, and ALs in generalized estimating equation models, the trend was similar and did not change significantly. Compared with individuals with iris color of grade 1, those with grade 5 had a thinner lens of 0.1 mm (95% confidence interval [CI]: 0.01, 0.19) in sex-adjusted model and a 0.09 mm (95% CI: 0, 0.18) in multivariate-adjusted model.

conclusionsLighter iris color might be associated with greater LTs in Chinese teenagers. The biological mechanisms underlying the association warrant further clarification. TRANSLATIONAL RELEVANCE: As LT is an important refractive component, knowledge on the effect of iris color on LTs may assist in the design of novel technologies, which could control refractive development.

Indexed as

epidemiologyiris colorlens thickness

Identifiers

PMID30323998
PMCPMC6181192
OpenAlexW2897195707

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.