precorneal

precorneal

anterior to or outside the cornea.

precorneal tear film
the thin layer of secretions from the conjunctival goblet cells and lacrimal, tarsal and nictitans glands that covers the outer surface of the cornea and conjunctiva.
References in periodicals archive ?
The lack of blood vessels at the cornea requires nutrition and protection by the diffusion of fluid from the anterior chamber and precorneal tear film.
2004), as the gland is a significant contributor to precorneal tear film production.
The precorneal tear film is an essential component of the ocular surface and can be subdivided into an anterior lipid layer, a middle aqueous layer and an innermost mucin layer.
Impact of short-term exposure of commercial eyedrops preserved with benzalkonium chloride on precorneal mucin.
Em corneas ulceradas, a atividade das proteinases encontra-se significativamente aumentada no filme lacrimal precorneal (STRUBBE et al.
Es responsable de la produccion del 30 a 50% de la porcion acuosa de la pelicula precorneal (Gelatt, 2003; Cabral et al.
The ocular surface is normally protected from microbial invasion through an intricate biochemical and anatomic relationship between the cornea, conjunctiva, lacrimal secretory apparatus and precorneal tear film, and the eye lids.
Precorneal tear film stability was assessed by measuring the tear film break-up time by scanning the precorneal tear film with a biomicroscope (Topcon SL1E; Topcon, Tokyo, Japan).
Structure and composition of rat precorneal tear film.