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Vectored Thermal Pulsation, Intense Pulsed Light, and Eyelid Warm Compress (VIEW) therapies for meibomian gland dysfunction – a multicentre, randomized, assessormasked, active-controlled clinical trial

Vectored Thermal Pulsation, Intense Pulsed Light, and Eyelid Warm Compress (VIEW) therapies for meibomian gland dysfunction – a multicentre, randomized, assessormasked, active-controlled clinical trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2100050323
Enrollment
Unknown
Registered
2021-08-26
Start date
2021-10-01
Completion date
Unknown
Last updated
2025-09-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Meibomian gland dysfunction

Interventions

Vectored thermal pulsation:Vectored thermal pulsation
Intense pulsed light and meibomian gland expression:Intense pulsed light and meibomian gland expression
Control:Eyelid warm compress therapy

Sponsors

Food and Health Bureau
Lead Sponsor

Eligibility

Sex/Gender
Male
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. >=18 years of age with no upper age limit; 2. Agree to attend follow-up visits and comply to treatment regimen 3. Symptomatic dry eye TFBUT =13; 4. Mild to moderate (level 3-4) MGD on at least one eye; 5. Fitzpatrick skin type 1-4.

Exclusion criteria

Exclusion criteria: 1.Contact lens wear 3 months before or during the study period; 2.Use of topical (including anti-glaucomatous, cyclosporin, antibiotics) or systemic medication known to affect (worsen or improve) MGD 3 months before or during the study period; 3.Major systemic (e.g. Sjogren’s syndrome), dermatologic (e.g. Rosacea) known to affect MGD or ocular conditions (including thyroid eye disease, recurrent conjunctivitis, ocular allergies); 4.Ocular procedures (excluding uncomplicated cataract operation) 3 months before and any ocular procedure during the study period; 5.History of vision correction surgery or plan to undergo the procedure during the study period; 6.Dermatological treatment (including chemical peeling, laser, IPL or energy device in the periocular and facial region) 6 months before or during the study period; 7.Contraindications to IPL therapy (including recent sun-burn, photosensitivity, active or pigmented skin lesions, cancer, implants, tattoos, semi-permanent makeup in the periocular area); 8.Contraindications to VTP therapy (ocular surgery, ocular injury, ocular herpes of eye or eyelid, and ocular inflammation 3 months before the study; active ocular infection, etc.); 9.Women who are pregnant, nursing, planning pregnancy, or of childbearing potential not using a reliable method of contraception.

Design outcomes

Primary

MeasureTime frame
Tear film breakup time (TFBUT);

Secondary

MeasureTime frame
Serial measurements of MG;Tear-film related parameters;Intraocular pressure;Compliance to EW;Factors associated with MGD outcomes and treatment related complications;

Countries

China

Contacts

Public ContactDr Chong Kam Lung Kelvin

Department of Ophthalmology and Visual Sciences, CUHK

chongkamlung@cuhk.edu.hk+852 3943 5805

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026