Key Takeaways
- OSDI scores improved significantly in both groups at 1 month, with greater symptom improvement among patients using the full-spectrum lamp plus artificial tears.
- NIBUT also improved in both groups, but the intervention did not produce significant between-group differences in NIBUT or other objective ocular surface measures.
Adding a full-spectrum lamp to artificial tears improved subjective dry eye symptoms more in the short term in patients with visual display terminal (VDT)-related dry eye, but did not result in differences in objective ocular surface measures between groups, according to a study.
The prospective randomized study included 66 patients with newly diagnosed VDT-related dry eye and limited corneal staining. Participants were assigned to a full-spectrum screen-bar lamp plus artificial tears (n = 34) or artificial tears alone (n = 32).
Primary endpoints were changes in Ocular Surface Disease Index (OSDI) and non-invasive tear breakup time (NIBUT) from baseline to one month.
The modified intention-to-treat analysis included 65 participants.
At 1 month, both groups showed significant improvements in OSDI scores (both P < 0.001), with the intervention group experiencing a greater improvement (adjusted between-group difference, −7.33; P = 0.042).
In both groups, NIBUT increased (P ≤ 0.017) with no significant between-group difference (adjusted difference, 0.26; P = 0.726).
Changes in tear meniscus height, conjunctival hyperemia, tear-film lipid layer thickness, and partial blinking rate did not differ significantly between groups. No study-related adverse events were reported.
Reference
Zhang N, Qiu C, Huang W, et al. Full-spectrum LED screen-bar lighting as an adjunct to artificial tears in visual display terminal-related dry eye: a randomized study. Int Ophthalmol. 2026;46(1):427. doi: 10.1007/s10792-026-04290-6. PMID: 42893472.
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