Evidence map›Paper›PMID 33005449›Full record

ArticleJournal of ophthalmology2020

Effects of Oral Vitamin B1 and Mecobalamin on Dry Eye Disease.

Xiaotong Ren, Yilin Chou, Xiaodan Jiang, Ran Hao, Yuexin Wang, Yanyan Chen, Xuemin Li

Open access · goldAbstract read
In one paragraph

Article in Journal of ophthalmology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 18% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. The Efficacy of Oral Vitamin Supplementation in Dry Eye Disease: A Systematic Review.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
    Pooled it
  2. Trial
  3. Article
  4. Article
  5. B Vitamins and Ocular Health.Clinical ophthalmology (Auckland, N.Z.) · 2026
    Review
  6. Article
  7. Review
  8. Article
  9. 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

7 authors at 2 institutions in 1 country.

Xiaotong RenDepartment of Ophthalmology, Peking University Third Hospital, Beijing, China.
Yilin ChouDepartment of Ophthalmology, Peking University Third Hospital, Beijing, China.
Xiaodan JiangDepartment of Ophthalmology, Peking University Third Hospital, Beijing, China.
Ran HaoDepartment of Ophthalmology, Peking University Third Hospital, Beijing, China.
Yuexin WangDepartment of Ophthalmology, Peking University Third Hospital, Beijing, China.
Yanyan ChenDepartment of Ophthalmology, Daqing Oilfield General Hospital, Daqing, Heilongjiang, China.
Xuemin LiDepartment of Ophthalmology, Peking University Third Hospital, Beijing, China.ORCID https://orcid.org/0000-0002-4018-9974
Peking University · CNDaqing Oilfield General Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo assess the effects of oral vitamin B1 and mecobalamin on dry eye disease (DED) and patient satisfaction with treatment.

methodsIn this randomized controlled study, DED patients were divided into 4 groups based on treatment: group 1, only artificial tears; group 2, corticosteroid eye drops and artificial tears; group 3, oral vitamin B1, mecobalamin, and artificial tears; and group 4, oral vitamin B1, mecobalamin, corticosteroid eye drops, and artificial tears. DED symptoms, signs, and patient satisfaction with treatment were assessed at baseline and at 1 and 2 months after treatment.

resultsIn total, 152 eyes from 76 patients (age, 55.25 ± 18.16 years) were included. In group 3, there were significant differences in dryness, foreign body sensation, burning, and tear film breakup time first (TBUTF) between 1 and 2 months after treatment and in satisfaction scores before and after treatment (

conclusionsOral vitamin B1 and mecobalamin can relieve some dry eye symptoms such as dryness, pain, and photophobia and improve DED signs and patient satisfaction. Thus, vitamin B1 and mecobalamin are potential treatment options for patients with DED.

Identifiers

PMID33005449
PMCPMC7508221
OpenAlexW3084212711

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.