- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT04172935
Productivity Study of Presbyopia Improvement in Textile Workers
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
Sustainable development is considered to be a major development strategy to meet rapid economic and social development in China. China is one of the biggest manufacturing hubs in the world. With the rapid development of economy, the health of manufacturing workers is closely related to productivity. In some low-income developing countries, studies have focused on improving the health of manufacturing workers to improve productivity .Most of the studies focused on improving the nutritional intake of workers has a significant effect on improving work efficiency and productivity .
As the global aging is becoming an critical issue for both health and economics, the health of the working population over the age of 45 is of greater concern in low - and middle-income developing countries. China has a workforce of 980 million people (aged 15 to 60). Urban workers and blue-collar workers account for nearly 310 million. With the aging population increased, presbyopia is becoming more and more serious, and it also affects the labor group that needs to work in close proximity. Studies have proved that refractive correction for tea pickers with old vision can effectively improve the yield of tea pickers and increase personal income.Because Guangdong area textile industry is developed, textile worker population is large. Most front-line textile workers need to work in close proximity for a long time, and the problem of aging productivity is increasingly obvious. At present, no relevant studies have explored whether presbyopia affects the work efficiency of textile workers who work in close proximity.
In this study, a randomized controlled clinical study will be conducted on front-line textile workers with presbyopia to explore whether refractive correction can improve labor income and relieve symptoms of visual fatigue for textile workers aged 40 years or above who work in the front-line.
Undersøgelsestype
Tilmelding (Forventet)
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiekontakt
- Navn: Yuting LI, Master
- Telefonnummer: +86-020-87334687
- E-mail: liyuting@gzzoc.com
Undersøgelse Kontakt Backup
- Navn: Qianyun Chen, Master
- Telefonnummer: +86-020-66610720
- E-mail: chenqianyun@gzzoc.com
Studiesteder
-
-
Guangdong
-
Foshan, Guangdong, Kina, 510000
- Gaoming, Foshan, Guangdong
-
Kontakt:
- Yuting LI, Master
- Telefonnummer: +86-020-87334687
- E-mail: ytdorothy@163.com
-
Kontakt:
- Qianyun Chen, bachelor
- Telefonnummer: +86-020-87334687
- E-mail: torunchen@163.com
-
-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Employee of E-square for 6 months;
- Aged >= 40 years;
- Quantifiable near visual task workers;
- Habitual near visual acuity of >= 0.8M (<=6/12) at 40cm in both eyes, correctable to <=0.5M (>=6/7.5);
- Near correction spherical equivalent refractive error >= +0.50D or astigmatism <-1.00D;
- Asthenopia symptoms reported ( Asthenopia questionnaire score >= 16) Ability to give informed consent
Exclusion Criteria:
- Ocular surgery done in the past 3 months;
- Eye disease detected on baseline eye exam
- Current ownership of near correction capable of improving near visual acuity to <= 0.8M (>= 6/12) in either eye
- Unlikely to complete follow-up due to unsatisfactory work performance, plans to move out of the area, etc.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Forebyggelse
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Eksperimentel: Presbyopic Glasses/ Intervention Group
Immediate provision of a free pair of spherical presbyopic glasses to correct the worker's vision for optimal working distance as measured before intervention.
|
Immediate provision of a free pair of spherical presbyopic glasses to correct the worker's vision for optimal picking distance, astigmatism is corrected.
|
|
Ingen indgriben: Control Group
Will be deferred to receive spectacles as above, after the 4 weeks evaluation period.
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
The rate of income change of textile workers
Tidsramme: 4 weeks
|
The rate of income change over baseline.
|
4 weeks
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
The quality of vision function
Tidsramme: 4 weeks
|
Secondary outcome will be the quality of vision function in both groups.National Eye Institute Visual Function Questionnaire-25 (NEI-VFQ-25 ) questionnaire will be used to measure the quality of vision function.For the NEI-VFQ-25, a composite score (25 items) and near activities sub score (two items) were created on 0-100 scales.
|
4 weeks
|
|
Percentage of glasses wear in intervention group, as well as the purchase and use of glasses in control group.
Tidsramme: 4 weeks
|
Independent compliance observation of wear of the study spectacles in the intervention group, self-reported purchase and use of glasses in the control group will be recorded.
|
4 weeks
|
Samarbejdspartnere og efterforskere
Efterforskere
- Studieleder: Yangfa Zeng, Master, Zhongshan Ophthalmic Center, Sun Yat-sen University
Datoer for undersøgelser
Studer store datoer
Studiestart (Forventet)
Primær færdiggørelse (Forventet)
Studieafslutning (Forventet)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- SYSU-OPH-005
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .
Kliniske forsøg med Presbyopic Glasses/ Intervention Group
-
Syracuse UniversityAfsluttet
-
ART Fertility Clinics LLCRekrutteringVirtual reality | PatienterfaringForenede Arabiske Emirater
-
University of HullHull University Teaching Hospitals NHS TrustAfsluttetLungekræft | OverlevelseDet Forenede Kongerige
-
Universidad de GranadaUniversity of Otago; University of Jaén; University of Valencia; Ministerio... og andre samarbejdspartnereAfsluttet
-
Centro de Estudio de Estado y SociedadTrukket tilbage
-
Oregon State UniversityEunice Kennedy Shriver National Institute of Child Health and Human Development...Afsluttet
-
Arkansas Children's Hospital Research InstituteAktiv, ikke rekrutterende
-
Karadeniz Technical UniversityAfsluttetSlag | Livskvalitet | Kognitiv svækkelseKalkun
-
Mayo ClinicPfizerAfsluttetRheumatoid arthritisForenede Stater
-
Queen's UniversityCanadian Institutes of Health Research (CIHR)Afsluttet