Corneal foreign body

Corneal Foreign Body

A Corneal foreign body is a foreign object that has become embedded in the cornea, the clear front surface of the eye. This can occur as a result of an accident, during certain activities such as grinding metal or woodworking, or from an object being blown into the eye by the wind.

Symptoms

Symptoms of a corneal foreign body can include pain, redness, tearing, blurred vision, and a sensation of something in the eye. In some cases, the foreign body can be seen on the surface of the cornea.

Diagnosis

Diagnosis of a corneal foreign body is typically made by an ophthalmologist or optometrist using a slit lamp, a microscope with a bright light that allows the eye to be examined in detail. The doctor may also use a dye called fluorescein to help visualize the foreign body and any damage to the cornea.

Treatment

Treatment for a corneal foreign body involves removing the object. This is usually done in a doctor's office using a needle or other small instrument. Topical anesthesia is often used to numb the eye before the procedure. After the foreign body is removed, antibiotic eye drops may be prescribed to prevent infection. In some cases, a patch may be placed over the eye to protect it while it heals.

Complications

If not treated promptly, a corneal foreign body can lead to complications such as corneal ulcer, corneal abrasion, or infection. In severe cases, it can cause permanent damage to the vision.

Prevention

Prevention of corneal foreign bodies involves wearing protective eyewear when engaging in activities that pose a risk of eye injury. This includes tasks such as grinding metal, woodworking, and playing certain sports.