Topical immunosuppressants for blepharitis in adults

Area of Science:

• Ophthalmology
• Dermatology
• Immunology

Background:

• Blepharitis is a common eyelid inflammation causing discomfort and ocular surface damage.
• Conventional treatments include eyelid hygiene and artificial tears.
• Topical corticosteroids are common but have side effects; newer immunosuppressants are alternatives.

Purpose of the Study:

• To evaluate the benefits and harms of topical immunosuppressants for adult blepharitis.
• To compare these treatments against placebo, conventional therapies, or other immunosuppressants.

Main Methods:

• Systematic review and meta-analysis of 12 randomized controlled trials (RCTs).
• Included studies compared topical corticosteroids, cyclosporine, or tacrolimus against control groups.
• Outcomes included symptom scores, tear film breakup time, corneal staining, and adverse effects.

Main Results:

• Topical corticosteroids (with/without antibiotics) and cyclosporine showed little to no significant difference in symptom reduction versus placebo or antibiotics alone.
• Topical corticosteroids plus antibiotics may improve corneal staining more than antibiotics alone.
• Evidence for most outcomes was of very low to low certainty.

Conclusions:

• Current evidence suggests topical corticosteroids and cyclosporine offer minimal benefit for blepharitis symptoms at 4-12 weeks.
• Topical corticosteroids are generally well-tolerated with low ocular surface irritation risk.
• Clinicians should consider the limited evidence and continue to recommend conventional lid hygiene and warm compresses.