what the hell is a nug i keep hearin people say it but i dunno what it means. im good on most other words its just this one i got trouble with.
1 Improper use of contact lenses or steroid eyedrops can lead to fungal infections, which in turn can cause corneal ulcers. Also, a corneal injury that results in plant material getting into the eye can lead to fungal keratitis.  Acanthamoeba are microscopic, single-celled amoeba that can cause human infection.
âThe most common cause of ulcers is damage to the mouth, for example by accidentally biting the inside of your cheek or from a sharp tooth but certain foods are also a possible trigger,â says Kate Hoffmann, matron at Spire The Glen Hospital in Bristol.