A corneal abrasion can make your eye feel incredibly painful. It can be responsible for blurred vision, sensitivity to light and a gritty feeling in your eye.
Corneal abrasions are normally treated with ointment and eye drops. They generally heal within a few days and cause no long-term effects.
Corneal abrasions occur when the transparent layer in the front of your eye— the cornea, is scratched. They normally occur through an injury to your eye, like poking it with a sharp fingernail or rubbing grit into it. They can also be caused by poor quality contact lenses.