Corneal and conjunctival epithelial cells

Corneal and conjunctival epithelial cells constitute the primary cellular barrier of the ocular surface, protecting the internal structures of the eye from external pathogens, allergens, and physical trauma (Source: StatPearls, Ocular Surface Disease). The corneal epithelium is a highly organized, transparent, stratified squamous layer essential for maintaining the eye's refractive properties and transparency (Source: NIH, National Eye Institute). In contrast, the conjunctival epithelium is a more vascularized layer containing specialized goblet cells that secrete mucins, which are vital for stabilizing the tear film and lubricating the ocular surface (Source: PubMed, PMID: 28633915). Dysfunction or damage to these cells is a hallmark of ocular surface diseases, including dry eye syndrome, keratitis, and chemical burns. Although these cells represent a tissue type rather than a single molecular target, they express various receptors, such as EGFR and TLRs, which are targeted by pharmacological interventions to promote wound healing and modulate immune responses (Source: Journal of Ocular Pharmacology and Therapeutics). Therapeutic strategies often involve topical agents like lubricants, anti-inflammatories, and growth factors to restore the integrity and function of these epithelial layers.

Other names

Corneal/conjunctival epithelial cellsOcular surface epitheliumCorneal epitheliumConjunctival epitheliumOcular epithelial cells

Drugs targeting the ocular surface typically act by modulating inflammatory pathways within the epithelial cells, providing mechanical lubrication, or promoting epithelial cell migration and proliferation to restore barrier integrity.