Low Level Light Therapy & Skin Pigmentation

Part of paid clinical trials in Houston, Texas.

Sponsor
University of Houston
Study ID
NCT07173530
Status
Recruiting
Apply to this trial

Conditions

  • Dry Eye
  • Meibomian Gland Dysfunction (Disorder)

Eligibility Criteria

Sex
ALL
Age
18 Years - N/A
Healthy Volunteers
Not accepted

Interventions

  • Three 15-minute low-level light therapy sessions using Light Emitting Diodes of wavelength 633nm (Essilor epi-c plus). — DEVICE
    A mask with Light Emitting Diodes wavelength 633nm will be placed over closed eyes for 15 minutes.

Study Details

The goal of this clinical trial is to determine if there is a difference in eyelid temperature after low-level light therapy (LLLT) in individuals with different amounts of skin pigmentation and dry eye/meibomian gland disease. Participants will have 3 fifteen minute in office LLLT therapy sessions over a period of approximately 7 to 14 days.

Key Dates

First listed
Sep 15, 2025
Start date
Jun 11, 2025
Status verified
Jul 2025
Primary completion
Aug 31, 2026
Completion
Aug 31, 2026

Study Design

Enrollment
40 participants (estimated)
Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT

Arms

  • Experimental: Fitzpatrick skin tone I-IV
    Individuals with skin tones I-IV on the Fitzpatrick scale will receive low-level light therapy
  • Experimental: Fitzpatrick skin tone V-VI
    Individuals with skin tones V-Vi on the Fitzpatrick scale will receive low-level light therapy

Primary Outcome Measure

Eyelid temperature [ Time Frame: Eyelid temperature will be measured before and after 15 minutes of low-level light therapy at the baseline visit. ]

Central Contacts

Locations (1)

FacilityCityStateZIPSite coordinators
The University of Houston College of OptometryHoustonTexas77204
Eric Ritchey, OD, PhD
[email protected]
7137431933
[email protected]
Eric Ritchey, OD, PhD (PRINCIPAL_INVESTIGATOR)
Rachel Redfern, OD, PhD (PRINCIPAL_INVESTIGATOR)

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By research site
The University of Houston College of Optometry· Houston, TX

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