A cornea symptom that is characterized by scarring (an opacity or irregularity in the cornea) of the cornea, from trauma; abrasion; bacterial, fungal, viral, or parasitic infection; or disease, and can result in impaired vision, or even blindness. [ url:https://www.neohioeyes.com/cornea-center/corneal-scar/ url:https://drstuartterry.com/eye-conditions/corneal-scarring/ ]