Clinical Report: Ocular Transmission of Red and Violet Light in Myopia Control

Overview

A study from the University of Houston College of Optometry reveals significant differences in how red and violet light wavelengths penetrate ocular tissues. Red light demonstrated greater transmission than violet light, particularly through the lens and retina.

Background

Light-based therapies are emerging as potential interventions for myopia control, with varying efficacy based on light wavelength. This study provides essential data on the transmission characteristics of red and violet light through key ocular tissues.

Data Highlights

Key Findings

• Red light consistently showed greater transmission than violet light across ocular structures.
• The lens significantly attenuated violet light before it reached the retina.
• Less than 1% of incident light from all sources reached the sclera.
• Red LEDs achieved transmission levels comparable to red lasers, suggesting a safer alternative.
• The study challenges the assumption that the sclera is the primary therapeutic target for light-based myopia therapies.
• Retinal and choroidal pathways may play a more prominent role in the efficacy of light-based interventions.

Clinical Implications

The findings indicate that the choice of light source may influence efficacy and safety.

Conclusion

This study provides insights into the transmission of light through ocular tissues.

Related Resources & Content

1. University of Houston College of Optometry, Ocular Transmission of Red and Violet Light, 2023 -- Insights into Light-Based Myopia Therapies
2. IMI—Interventions for Controlling Myopia Onset and Progression 2025 - PMC
3. Daily Low-Level Red Light for Spherical Equivalent Error and Axial Length in Children With Myopia: A Randomized Clinical Trial | Trials | JAMA Ophthalmology | JAMA Network
4. Eyecare Business — Light and Vision
5. Optometric Management — staffing solutions - Let There Be Light
6. Contact Lens Spectrum — LIGHTING THE WAY TO MYOPIA CONTROL
7. Optometric Management — What's new
8. Eyecare Business — Light and Vision
9. Contact Lens Spectrum — LIGHTING THE WAY TO MYOPIA CONTROL
10. IMI—Interventions for Controlling Myopia Onset and Progression 2025 - PMC
11. Daily Low-Level Red Light for Spherical Equivalent Error and Axial Length in Children With Myopia: A Randomized Clinical Trial | Trials | JAMA Ophthalmology | JAMA Network
12. Ocular Transmission of Red and Violet Light: Insights into Light-Based Myopia Therapies - PMC