Lactic Acid Bacteria for Reducing Blue Light-Induced Eye Fatigue
The Application of Lactic Acid Bacteria on Reducing Blue Light-Induced Eye Fatigue in Middle-Aged Adults
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Studientyp
Studientyp
Einschreibung (Geschätzt)
Einschreibung
Phase
Phase
- Unzutreffend
Kontakte und Standorte
Studienkontakt
Studienkontakt
- Name: Han-Yin Hsu
- Telefonnummer: +886-07-6955680 Ext. 2923
- E-Mail: hanin@synbiotech.com.tw
Studieren Sie die Kontaktsicherung
- Name: Chia-Chia Lee
- Telefonnummer: +886-07-6955680 Ext. 2921
- E-Mail: cclee@synbiotech.com.tw
Studienorte
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Taipei, Taiwan, 106
- National Taiwan Normal University
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Kontakt:
- Chi-Hao Wu, Professor
- Telefonnummer: +886-02-7749-1427
- E-Mail: chwu@ntnu.edu.tw
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Beschreibung
Inclusion Criteria:
- Men and women aged 20-65 years
- Daily digital screen use >6 hours for at least 1 year
- Mild to severe digital eye strain (CVS-Q score ≥ 6)
- Mild to moderate dry eye symptoms (OSDI ≥ 13)
Exclusion Criteria:
- Amblyopia or strabismus
- Severe eye diseases (e.g., glaucoma , cataract , retinal disorders, severe corneal disease)
- Ocular surgery within the past 12 months
- Chronic systemic diseases (e.g., uncontrolled diabetes, autoimmune disease, severe liver/kidney impairment, cancer)
- Recent use (<1 months) of steroids, antibiotics, immunosuppressants, probiotics, prebiotics, or eye-health supplements
- Pregnant or breastfeeding
- Allergy to probiotics or study product ingredients
- Eating disorders, psychiatric illness, or cognitive impairment affecting compliance
- Any condition judged unsuitable by the investigator
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Verhütung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Doppelt
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
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Placebo-Komparator: Placebo
Subjects assigned to the placebo group will take one placebo capsule daily within 30 minutes before breakfast throughout the 12-week intervention period.
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Maltodextrin
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Experimental: BL531_low dose
Subjects assigned to each intervention group will take one capsule daily within 30 minutes before breakfast throughout the 12-week intervention period.
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1×10^10 cfu/day
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Experimental: BL531_high dose
Subjects assigned to each intervention group will take one capsule daily within 30 minutes before breakfast throughout the 12-week intervention period.
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2.5×10^10 cfu/day
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Experimental: LR1349_low dose
Subjects assigned to each intervention group will take one capsule daily within 30 minutes before breakfast throughout the 12-week intervention period.
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1×10^10 cfu/day
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Experimental: LR1349_high dose
Subjects assigned to each intervention group will take one capsule daily within 30 minutes before breakfast throughout the 12-week intervention period.
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2.5×10^10 cfu/day
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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Computer Vision Syndrome Questionnaire (CVS-Q)
Zeitfenster: Baseline, Week 6, Week 12
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The CVS-Q is a questionnaire used to assess digital eye strain associated with prolonged digital screen use.
It includes 16 symptoms related to screen exposure.
Total scores are classified as 0-5 (none/minimal), 6-12 (mild), 13-18 (moderate), and ≥19 (severe), with scores ≥6 indicating clinically significant digital eye strain.
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Baseline, Week 6, Week 12
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Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Ocular Surface Disease Index (OSDI)
Zeitfenster: Baseline, Week 6, Week 12
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The Ocular Surface Disease Index (OSDI) is a 12-item questionnaire used to assess the severity of dry eye symptoms and their impact on vision-related function and daily activities.
Total scores range from 0 to 100, with higher scores indicating greater symptom severity.
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Baseline, Week 6, Week 12
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Basic vision examination
Zeitfenster: Baseline and Week 12
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A comprehensive ophthalmic examination will be performed, including uncorrected distance and near visual acuity, automated refraction, presbyopia assessment, distance and near vision correction, intraocular pressure measurement, and external eye photography for conjunctival hyperemia assessment.
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Baseline and Week 12
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Pupillary Response Test
Zeitfenster: Baseline and Week 12
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Pupillary response testing will be performed using the Oculus Pentacam HR or an equivalent device to evaluate pupil size and response time under light and dark conditions.
This assessment provides information on the visual system's adaptation to changes in illumination.
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Baseline and Week 12
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Tear Secretion Assessment
Zeitfenster: Baseline and Week 12
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Tear meniscus height will be measured using the OS1000 Corneal Topographer (SBM sistemi, Italy) or an equivalent device as an indicator of tear secretion.
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Baseline and Week 12
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Non-Invasive Tear Break-Up Time (NIBUT)
Zeitfenster: Baseline and Week 12
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Non-invasive tear break-up time (NIBUT) will be measured using the OS1000 Corneal Topographer (SBM sistemi, Italy) or an equivalent device to evaluate tear film stability.
A shorter NIBUT is commonly associated with dry eye symptoms and digital eye strain.
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Baseline and Week 12
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Corneal Tomography and Topography Analysis
Zeitfenster: Baseline and Week 12
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Corneal tomography and topography analysis will be performed using the Oculus Pentacam HR or an equivalent device to evaluate corneal morphology, curvature, thickness, and regularity.
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Baseline and Week 12
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Accommodative Function Assessment
Zeitfenster: Baseline and Week 12
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Accommodative function will be assessed using the ARK-1s Auto Ref-Keratometer (NIDEK, Japan) or an equivalent device to evaluate the eye's focusing ability and quantify accommodative responses associated with ciliary muscle contraction and relaxation.
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Baseline and Week 12
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Worth Four Dot Test
Zeitfenster: Baseline and Week 12
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The Worth Four Dot Test will be used to assess binocular vision and fusion ability by evaluating responses to red and green visual targets, including the presence of suppression or diplopia.
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Baseline and Week 12
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Mitarbeiter und Ermittler
Sponsor
Sponsor
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Geschätzt)
Studienbeginn
Primärer Abschluss (Geschätzt)
Primärer Abschluss
Studienabschluss (Geschätzt)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- C202605115
Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
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