Therapy/Class: Antibiotic + Corticosteroid
Mechanism of Action:
Dexamethasone: A highly efficacious, long-acting synthetic glucocorticoid that rapidly permeates the corneal epithelium to suppress cellular exudation, capillary permeability, and fibroblastic proliferation. It achieves potent suppression of the immune response by inhibiting the transcription of pro-inflammatory genes.
Tobramycin: A water-soluble aminoglycoside that irreversibly binds to the 30S subunit of the bacterial ribosome, inducing mRNA misreading. It exhibits excellent bactericidal activity, specifically functioning as a critical clinical tool against severe Gram-negative bacilli keratitis and conjunctivitis.