Evidence map›Paper›PMID 31007216›Full record

ArticleIndian journal of ophthalmology2019

Objective optical assessment of tear-film quality dynamics in patients with meibomian gland dysfunction and aqueous-deficient dry eye optical quality changes in different dry eye subtypes.

Fen Ye, Feng Jiang, Yan Lu, Chun Yan Xue, Xiao Min Zhu, Yan Wu, Zhen Ping Huang

Abstract read
In one paragraph

Article in Indian journal of ophthalmology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–field-weighted citation impact
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

10 citing papers in PubMed.

  1. Trial
  2. Review
  3. Article
  4. Meibomian Gland Dysfunction Clinical Practice Guidelines.Japanese journal of ophthalmology · 2023
    Article
  5. Article
  6. Assessment of Meibomian Gland (MD) Impairment Among Seasonal Allergic Conjunctivitis (SAC) Patients.Medical science monitor : international medical journal of experimental and clinical research · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. 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.

Fen YeDepartment of Ophthalmology, Jinling Hospital of Nanjing Medical University, Nanjing 210002, Jiangsu Province, PR China.
Feng JiangDepartment of Ophthalmology, The Affiliated Sir Run Run Hospital of Nanjing Medical University, Nanjing 210002, Jiangsu Province, PR China.
Yan LuDepartment of Ophthalmology, Jinling Hospital of Nanjing Medical University, Nanjing 210002, Jiangsu Province, PR China.
Chun Yan XueDepartment of Ophthalmology, Jinling Hospital of Nanjing Medical University, Nanjing 210002, Jiangsu Province, PR China.
Xiao Min ZhuDepartment of Ophthalmology, Jinling Hospital of Nanjing Medical University, Nanjing 210002, Jiangsu Province, PR China.
Yan WuDepartment of Ophthalmology, Jinling Hospital of Nanjing Medical University, Nanjing 210002, Jiangsu Province, PR China.
Zhen Ping HuangDepartment of Ophthalmology, Jinling Hospital of Nanjing Medical University, Nanjing 210002, Jiangsu Province, PR China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: To evaluate the optical quality and tear-film dynamics in patients with aqueous-deficient or evaporative subtype of dry eye disease (DED). Methods: Twenty-five aqueous-deficient dry eye (ADDE) patients, 25 DED patients with meibomian gland dysfunction (MGD), and 25 healthy subjects were included in this study. Vision-related health-targeted quality of life was evaluated using the Ocular Surface Disease Index (OSDI) questionnaire. Dynamic recording with a double-pass system (Optical Quality Analysis System [OQAS]) was performed in right eyes. Scattered light was measured as the objective scatter index (OSI) at 0.5-second intervals over 20 seconds without blinking. Then, we recorded OSI every 0.5 seconds within a 20-second period with the subjects asked to blink freely. Several parameters were established to evaluate the dynamic alterations of optical quality and the effects of blinks: OSI, OSI standard deviation (SD), ΔOSI, ΔOSI/time, blinking change (BC), and blinking frequency (BF). Additional clinical examination included tear film break-up time (BUT), Schirmer I test (SIT), fluorescein staining grade (FL), meibomian gland quality, meibomian gland expressibility, and meibomian gland drop-out. Results: The OSI, SD, ΔOSI, ΔOSI/time, BC, and BF were significantly higher in DED patients than controls (P < 0.01, respectively). The OSI, SD, ΔOSI, ΔOSI/time, BC, and BF were significantly higher in patients with MGD than patients with ADDE (P < 0.01). In the MGD group, BUT, FL staining score, lid abnormality, meibomian gland expressibility, and meibomian gland drop-out were correlated with Δ OSI and Δ OSI/time. Conclusion: Dry eye patients with MGD had significant alterations of optical quality compared with ADDE patients. The double-pass system has potential to be a useful quantitative method to evaluate the optical quality and tear-film dynamics in patients with dry eye.

Indexed as

AdultBlinkingDiagnostic Techniques, OphthalmologicalDry Eye SyndromesFemaleHumansMaleMeibomian GlandsOsmolar ConcentrationTearsDry eyedynamicsoptical qualitysubtype

Identifiers

PMID31007216
PMCPMC6498932

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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.