Observational studyInternational ophthalmology2026
Home-based low-level light therapy using a commercial LED mask for dry eye disease.
Observational study in International ophthalmology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
4 authors.
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Abstract
purposeLight-based therapies, including low-level light therapy (LLLT), have recently emerged as promising non-invasive approaches for dry eye disease (DED). This study evaluates the impact of a consumer-grade home-based LED Beauty Mask on DED parameters.
methodsThis retrospective observational cohort study included 20 postmenopausal women (20 eyes) diagnosed with moderate DED and MGD who underwent cosmetic treatment using the LED Beauty Mask Koled®. The device was used for 20-min sessions on alternate days over a 3-week period. Clinical evaluations were performed at baseline, 3 weeks (T1), and 2 weeks (T2) after the last treatment and included tear osmolarity, tear film break-up time (TBUT), Schirmer I test, corneal fluorescein staining, and the Ocular Surface Disease Index (OSDI).
resultsTear osmolarity demonstrated a significant improvement over time (P < 0.001), with the most pronounced change observed at T1. Tear film stability, assessed by TBUT, also improved significantly (P = 0.001). Subjective symptoms measured by OSDI showed a significant and sustained reduction (P < 0.001). No significant changes were observed in Schirmer I test values (P = 0.29). Corneal fluorescein staining present at baseline resolved by the final follow-up. Four eyes (20%) exhibited osmolarity values below the measurable range after treatment. No discomfort or adverse events were reported.
conclusionsThis study suggests that a cosmetic LED mask may provide symptomatic and functional improvement in DED when repurposed for ocular use. Although preliminary and limited by sample size, these findings support further investigation through controlled clinical trials.
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