Evaluation of Short-Term Color Vision Perception Changes After Using a Repeated Low-Level Red-Light Therapy Myopia Management Device
Batool B, Davey C, Dahlmann-Noor A, Mckeefry D, Ghorbani-Mojarrad N
Current eye research · 0 citations
How it was studied
- Design
- Controlled clinical trial (classified by our AI screen)
- Studied in
- People
- Main outcome
- Health markers and function
Who paid for it
- Funding
- Independent funding
- Unclassified
- Eyerising International
Based on 1 listed funder(s).
Publication
- Published
- 2025-07-06 · Curr Eye Res · vol. 50 · issue 11 · pp. 1173–1180
- Publisher
- Taylor & Francis
- Cited
- 0 citations · more than 18% of similar papers · 0.0× the field average
- References
- 40 works
- Access
- Open access (hybrid journal) · CC-BY-NC-ND
- Research areas
- Ophthalmology and Visual Impairment Studies · Retinal Diseases and Treatments · Laser Applications in Dentistry and Medicine
- Keywords
- Term (time), Optometry, Color vision, Medicine, Light therapy, Perception, Ophthalmology, Low vision, Psychology, Computer vision, Computer science, Physics, Internal medicine, Neuroscience
- MeSH
- choroid, humans, myopia, tomography, optical coherence, color perception tests, phototherapy, follow-up studies, color perception, visual acuity, adult, middle aged, female, male, color vision, young adult
5 authors
From GB
- Baasimah BatoolUniversity of Bradford
- Christopher James DaveyUniversity of Bradford
- Annegret Hella Dahlmann-NoorMoorfields Eye Hospital; University College London
- Declan J. McKeefryUniversity of Bradford
- Neema Ghorbani Mojarrad · correspondingUniversity of Bradford; Bradford Royal Infirmary
Abstract
Purpose
Repeated low-level red-light (RLRL) therapy is an emerging technique for managing myopia progression. Clinical trials have demonstrated its efficacy, but uncertainties remain on its effect on immediate vision perception. This study evaluated the impact of RLRL on short-term color vision perception and choroidal thickness. Attitudes towards RLRL were also explored.
Methods
Twenty participants underwent color vision assessment using the Colour Assessment Diagnosis (CAD) test and macular optical coherence tomography (OCT) to determine their eligibility and establish baseline measures for color vision perception threshold and choroidal thickness, with color vision perception measured using chromatic displacement (CD). Participants then underwent three sessions of RLRL, at the required time intervals as per manufacturer guidance. After each session, the CAD test was performed immediately, and repeated after a 5-minute interval. At the final visit, the OCT scan was retaken, and participants were asked about their experience of using RLRL. CD was measured and compared before and after RLRL exposure, to identify if there was any differences following usage.
Results
A significant reduction in color perception sensitivity was observed immediately after exposure to RLRL at each visit (p p = 0.054). There was no significant difference in the mean choroidal thickness in the left eye; the right eye showed a small reduction in macular choroidal thickness 5.1 µm (± 8.551 µm SD, p = 0.015). Participant feedback demonstrated a generally positive response, indicating people would consider using RLRL for myopia management if recommended.
Conclusions
There appears to be only a temporary impact of RLRL on color vision perception, which returns to baseline after 5 min. Furthermore, feedback suggests that UK populations may be receptive to RLRL if prescribed to them by an eye care practitioner.
Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY-NC-ND).
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