Also known as: warm compress, eyelid heating, meibomian gland therapy
Strongest in Consistency (95). Held back by Replication (38).
Solid mix of RCTs with some methodological gaps.
Some independent replication, statistical precision uneven.
Hundreds of participants; meaningful but not large.
Studies agree on direction of effect.
Healthy mix of recent and established research.
No per-outcome numbers yet for this one. Each finding's direction and strength is shown in the research below.
Areas where research points to a consistent direction of effect. The strength of evidence is graded; the size of the effect is not quantified.
Apply a warm compress to closed eyes for 5-10 minutes daily. Melts hardened meibomian gland secretions, restoring the lipid layer of the tear film. First-line clinical treatment for evaporative dry eye and meibomian gland dysfunction.
A systematic review with meta-analysis of 4 RCTs found that eyelid warming therapies (including warm compresses) significantly improved dry eye symptoms (OSDI mean difference 19.57, p<0.001) in contact-lens-related dry eye, though tear-film and wearing-time gains were limited.
A meta-analysis of randomized trials (385 patients) confirmed that warm compress treatment is the traditional effective management for meibomian gland dysfunction dry eye, improving meibomian gland function and tear break-up time (vectored thermal pulsation was somewhat more effective).
A systematic review with meta-analysis (7 RCTs, 367 patients) found that eyelid warming devices significantly improved dry eye symptoms (OSDI, SMD 0.91, p=0.0002) and non-invasive tear break-up time (p<0.0001) versus controls in meibomian gland dysfunction.
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