A corneal abrasion is a scratch or injury on the surface of the cornea, the clear front part of the eye. This condition can occur due to various reasons, such as foreign objects, contact lenses, or accidental trauma. Symptoms often include pain, redness, tearing, and sensitivity to light. Treatment for corneal abrasions typically involves keeping the eye lubricated and may include antibiotic eye drops to prevent infection. Most abrasions heal within a few days, but it is important to seek medical attention if symptoms persist or worsen to avoid complications that could affect vision.