Andrew A. Dahl, MD, is a board-certified ophthalmologist. Dr. Dahl's educational background includes a BA with Honors and Distinction from Wesleyan University, Middletown, CT, and an MD from Cornell University, where he was selected for Alpha Omega Alpha, the national medical honor society. He had an internal medical internship at the New York Hospital/Cornell Medical Center.
Melissa Conrad Stöppler, MD, is a U.S. board-certified Anatomic Pathologist with subspecialty training in the fields of Experimental and Molecular Pathology. Dr. Stöppler's educational background includes a BA with Highest Distinction from the University of Virginia and an MD from the University of North Carolina. She completed residency training in Anatomic Pathology at Georgetown University followed by subspecialty fellowship training in molecular diagnostics and experimental pathology.
A corneal abrasion may occur when something hits your eye. For example, while hiking, if the person in front of you
pushes and lets go of a tree branch, it could hit your eye, causing an abrasion to the cornea.
A corneal injury may occur when something gets into your eye, for example, when the wind blows a dried leaf particle into your eye or when paint chips fall into your eye while you are scraping off old paint. This material may scratch the cornea.
A foreign body, such as a piece of sand or wood, may lodge under the inside
of the upper lid and cause scratches of the corneal surface every time that you blink.
In addition to causing corneal injury, high-speed particles may penetrate your eye and injure deeper structures. An example of this would be a small metal fragment flying into the eye when a person is using a grinding wheel without protective eyewear. This may cause a serious injury that demands immediate medical attention to guard against permanent loss of vision.
A hot cigarette ash flying into the eye may cause a corneal abrasion.
A common cause of a corneal abrasion is a young child accidentally poking
you in the eye with her fingernail.
You may cause a corneal abrasion when you rub your eyes excessively when they are irritated.
Wearing contact lenses longer than recommended may injure the corneal surface and cause a corneal abrasion.
Certain eye infections may also cause injury to the surface of the cornea. This injury, although not technically considered a corneal abrasion, may be temporary or permanent.
Exposure of the unprotected eye to ultraviolet light from sun lamps or welding arcs can cause changes in the corneal surface resembling corneal abrasions.