Filamentary keratopathy

Why there occurs filamentary keratopathy in long standing corneal odema and viral keratitis?

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This is commonly due to a decrease in aqueous tear production, but may also be due to increased production or accumulation of the mucinous component. This alteration in tear film makeup sets the stage for formation of mucoid filaments. Small defects in the corneal epithelium provide an anchoring surface for the filaments. Mucin attaches to the epithelial defect and loose epithelial strands are incorporated into the mucin strand attached to the surface.

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Filamentary keratopathy Due to constant lid movements epithelial tags arising from swollen epithelium show coiling with elongated and vacuolated cells. Affections causing corneal filaments are . Keratoconjunctivitis sicca . Neurotrophic keratopathy . Bullous keratopathy . Following abrasions or erosion . Herpes simplex keratitis . Superior limbic keratoconjunctivitis . Sutures or wound . Toxicity to topical therapy

CORNEA GETS NUTRITION FRON OXYGEN AND AQUIOUS FIR THIS CORNEA TRANSPARANCY IS IMPORTANT BASICALLY CORNEA IS AN AN TRANAPARANT STRUCTURE HOWEVER IN INTRAOCULAR INFLAMMATIO S AND RAISED I OP THE CORNEAL TRANSPARANCY IS.LOST CORNEAL NUTRITION SUFFERS AND ONE CAN GET ANY TYPE OF CORNEAL PATHOLOGY BE IT GILAMENYORY KERSTSPSTHY OR BULLOUS KERATAPATHY

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