<unk>  is an inflammatory or, more seriously, infective condition of the cornea involving disruption of its epithelial layer with involvement of the corneal stroma. It is a common condition in humans particularly in the tropics and the agrarian societies. In developing countries, children afflicted by Vitamin A deficiency are at high risk for<unk>  and may become blind in both eyes, which may persist lifelong. In ophthalmology, a<unk>  usually refers to having an infectious cause while the term corneal abrasion refers more to physical abrasions.
Corneal ulcer
Corneal abrasion
Band keratopathy
Bullous keratopathy
Periorbital cellulitis
Lattice corneal dystrophy
Macular corneal dystrophy
Ocular melanosis