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Overview of human cornea and its pathological opacification. Transparent cornea is composed of corneal epithelium, Bowman’s membrane, corneal stroma, Descemet’s membrane and corneal endothelium. Corneal pathologies (e.g., infection, ulcer, injuries) lead to corneal opacification, which is conventionally treated by surgical removal and donor corneal transplantation (penetrating and lamellar keratoplasties).
