Effects of red light therapy on eye structures in myopic adults

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This research project is a randomized controlled trial that investigates the short-term effects of different red light therapy techniques on the choroidal and retinal structures in adults with myopia. The study will enroll 45 participants aged 18 to 40, who will be assigned to one of three groups based on the size and shape of the light spots used during therapy. The primary goal is to identify which retinal regions are most affected by low-level red light therapy, while also assessing the safety of these interventions. Participants will undergo repeated treatments to evaluate potential choroidal thickening.

Why it matters

Who can join: the full rules

Inclusion Criteria:

1. Age: 18 to 40 years.
2. Myopic spherical equivalent refraction (SER) between -1.00D to -6.00D in both eyes.
3. Best corrected visual acuity (BCVA): 20/20 or greater.
4. Informed consent for participation.

Exclusion Criteria:

1. Anisometropia greater than 1.50D.
2. Ophthalmic diseases other than refractive errors, including but not limited to strabismus and binocular vision abnormalities in either eye.
3. Systemic diseases (e.g., endocrine, cardiac diseases) and developmental abnormalities.
4. Inability to attend regular follow up assessment.
5. Undergo RLRL therapy in the past 6 months
6. Contraindications to RLRL therapy.

Where it's running

• The Hong Kong Polytechnic University
  Hong Kong, Hong Kong Recruiting

Study contacts

• Study coordinator: Mingguang He
• Email: mingguang.he@polyu.edu.hk
• Phone: 85234002795

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

• Evaluating a device for screening vision problems in young children

  This study is testing a new device to see if it can effectively find vision problems in children aged 3 to 8, whether they wear glasses or not.

  Recruiting Essilor International · Nancy, France and 1 other locations · NCT06882408

• Optimizing light exposure to prevent and control myopia in children

  This study tests if changing classroom lighting to mimic sunlight or using a smartphone app to guide light exposure can help prevent and control myopia in primary school children.

  Recruiting at 5 sites National University of Singapore · Singapore and 4 other locations · NCT06631339

• Hyperopic reserve screening for kindergartners in Beijing

  A population-wide screening tests whether senior kindergarten children in Beijing have enough hyperopic reserve to help prevent future myopia.

  Recruiting Beijing Tongren Hospital · Beijing · NCT07851532

• Do dual-focus multifocal contact lenses improve hand-eye coordination and sports vision compared with your usual lenses

  This study tests whether wearing dual-focus multifocal contact lenses improves hand-eye coordination and sports vision in adults who play baseball or softball and normally wear contact lenses.

  Recruiting Ohio State University · Columbus, Ohio · NCT07840209

• Two monthly silicone hydrogel multifocal toric contact lenses in wearers with astigmatism and myopia

  This study tests whether two popular soft multifocal toric contact lenses perform differently in adults who need vision correction for astigmatism and myopia.

  Recruiting CooperVision International Limited (CVIL) · New York, New York and 2 other locations · NCT07829419

• Seeing clearly in low light after Ray-Tracing guided LASIK

  A trial tests how well WaveLight Plus LASIK works for people with myopia and astigmatism and whether patients are satisfied after the procedure.

  Recruiting Phase 4 Vance Thompson Vision · Sioux Falls, South Dakota · NCT07790185

How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.