Evaluation of Short-Term Color Vision Perception Changes After Using a Repeated Low-Level Red-Light Therapy Myopia...

Area of Science:

• Ophthalmology
• Vision Science
• Biomedical Optics

Background:

• Repeated low-level red-light (RLRL) therapy is an emerging treatment for myopia progression.
• While clinical trials show efficacy, its immediate impact on vision perception requires further investigation.

Purpose of the Study:

• To evaluate the short-term effects of RLRL on color vision perception and choroidal thickness.
• To explore participant attitudes towards RLRL therapy for myopia management.

Main Methods:

• Twenty participants underwent color vision tests (CAD) and OCT scans for baseline measurements.
• Participants received three RLRL sessions, with color vision assessed immediately and 5 minutes post-treatment.
• Choroidal thickness was re-evaluated, and participant feedback was collected.

Main Results:

• Immediate post-RLRL exposure showed a significant reduction in color perception sensitivity (p < 0.001), resolving within 5 minutes.
• Three RLRL sessions did not alter baseline color perception (p = 0.054).
• No significant change in mean choroidal thickness was observed in the left eye; the right eye showed a minor reduction (5.1 µm, p = 0.015).

Conclusions:

• RLRL therapy has a transient impact on color vision perception, with sensitivity returning to baseline levels within 5 minutes.
• Participant feedback was generally positive, indicating a willingness to consider RLRL for myopia management if recommended by eye care practitioners.