Evidence map›Paper›PMID 26807908›Full record

ArticlePloS one2016

Low Serum 25-Hydroxyvitamin D Levels Are Associated with Dry Eye Syndrome.

Sam Young Yoon, Seok Hyun Bae, Young Joo Shin, Shin Goo Park, Sang-Hee Hwang, Joon Young Hyon, Won Ryang Wee

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
6.4field-weighted citation impact, top 3% 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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Vitamin D and Ocular Diseases: A Systematic Review.International journal of molecular sciences · 2022
    Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Resveratrol for dry eye disease - Hope or Hype?Indian journal of ophthalmology · 2023
    Review
  8. Dry Eye Disease: What Is the Role of Vitamin D?International journal of molecular sciences · 2023
    Review
  9. Article
  10. Review
  11. Review
  12. Observational
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Commentary: Dry eye syndrome and vitamin D deficiency.Indian journal of ophthalmology · 2020
    Article
  19. Article
  20. Review
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 4 institutions in 1 country.

Sam Young YoonDepartment of Ophthalmology, Hallym University College of Medicine, Seoul, Republic of Korea.
Seok Hyun BaeDepartment of Ophthalmology, Hallym University College of Medicine, Seoul, Republic of Korea.
Young Joo ShinDepartment of Ophthalmology, Hallym University College of Medicine, Seoul, Republic of Korea.
Shin Goo ParkDepartment of Occupational and Environmental Medicine, Inha University School of Medicine, Incheon, Republic of Korea.
Sang-Hee HwangDepartment of Dentistry, Keimyung University School of Medicine, Daegu, Republic of Korea.
Joon Young HyonDepartment of Ophthalmology, Seoul National University College of Medicine, Seoul, Republic of Korea.
Won Ryang WeeDepartment of Ophthalmology, Seoul National University College of Medicine, Seoul, Republic of Korea.
Hallym University · KRSeoul National University · KRInha University · KRKeimyung University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDry eye syndrome (DES) is a common tear film and ocular surface disease that results in discomfort, visual disturbance, and tear film instability with potential damage to the ocular surface. Systemic diseases associated with DES include diabetes mellitus, rheumatoid arthritis, depression, anxiety, thyroid disease, allergic diseases, irritable bowel syndrome, chronic pain syndrome, and hyperlipidemia. Interestingly, it has been found that most of these are associated with low levels of serum 25-hydroxyvitamin D (25(OH)D) or inadequate sunlight exposure.

methodsIn this cross-sectional data analysis, noninstitutionalized adults aged ≥19 years (N = 17,542) who participated in Korean National Health and Nutrition Examination Survey 2010-2012 were included. Information regarding duration of sunlight exposure was collected from the survey participants. Serum 25(OH)D and zinc levels were measured. The confounding variables were age, gender, sunlight exposure time, region of residence, obesity, serum 25(OH)D level, diabetes mellitus, rheumatoid arthritis, depression, thyroid disorder, atopic dermatitis, history of ocular surgery, regular exercise, and walking exercise.

resultsMean serum 25(OH)D levels of subjects with and without DES were 16.90 ± 6.0 and 17.52 ± 6.07 (p<0.001). Inadequate sunlight exposure time (odds ratio [OR], 1.554; 95% confidence interval [CI], 1.307-1.848), urban residence (OR, 1.669; 95% CI, 1.456-1.913), indoor occupation (OR, 1.578; 95% CI, 1.389-1.814), and low serum 25(OH)D level (OR, 1.158; 95% CI, 1.026-1.308) were the risk factors for DES. After adjusting for age, sex, obesity, diabetes mellitus, rheumatoid arthritis, depression, thyroid disorder, atopic dermatitis, history of ocular surgery, regular exercise, and occupation, low serum 25(OH)D level (OR, 1.178; 95% CI, 1.010-1.372) and deficient sunlight exposure time (OR, 1.383; 95% CI, 1.094-1.749) were the risk factors for diagnosed DES.

conclusionLow serum 25(OH)D levels and inadequate sunlight exposure are associated with DES in Korean adults. These results suggest that sufficient sunlight exposure or vitamin D supplementation may be useful in DES treatment.

Indexed as

SunlightAdultAgedAged, 80 and overCross-Sectional StudiesDry Eye SyndromesFemaleHealth SurveysHumansMaleMiddle AgedRisk FactorsVitamin DYoung Adult25-hydroxyvitamin DVitamin D

Identifiers

PMID26807908
PMCPMC4726745
OpenAlexW2410046212

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.