Ocular mucosal surface

The ocular mucosal surface is a complex physiological and anatomical unit comprising the cornea, the conjunctiva, and the overlying pre-ocular tear film (Gipson, 2007). It serves as the primary interface between the eye and the external environment, providing a smooth refractive surface essential for vision and a robust barrier against pathogens and physical trauma (StatPearls, 2023). While not a single molecular target, it is a critical site for topical drug delivery and the primary focus of therapies for Ocular Surface Disease (OSD). In conditions like Dry Eye Disease (DED), the homeostatic balance of this surface is disrupted, leading to tear film instability, hyperosmolarity, and chronic inflammation (Bron et al., 2017). Pharmacological interventions often target specific molecular pathways within this surface, such as inhibiting T-cell activation with Cyclosporine or blocking lymphocyte function-associated antigen-1 (LFA-1) with Lifitegrast (NIH/PubMed). Effective management of the ocular mucosal surface requires addressing both the underlying inflammatory processes and the mechanical integrity of the tear-mucin layer.

Other names

Ocular surfaceConjunctival mucosaCorneal-conjunctival surfacePreocular surface

Drugs interacting with the ocular mucosal surface typically function through immunomodulation of conjunctival T-cells, antagonism of integrin-mediated cell adhesion, or by providing mechanical lubrication and osmoprotection to the corneal and conjunctival epithelium.