Corneal scraping is an outpatient surgical procedure that involves the removal of part of the corneal epithelium, the thinnest and most superficial layer of the cornea. It is performed with the aim of removing particles such as foreign bodies, infections, or deposits that may be damaging the cornea and affecting vision.
During corneal scraping, the patient sits in a reclining chair, and topical or local anesthesia is applied to numb the eye. The ophthalmic surgeon then uses a special instrument, such as a brush or soft sponge, to gently scrape or wash the surface of the cornea. The procedure is typically quick and painless, lasting between 5 and 10 minutes.
When is Corneal Scraping Used?
This surgery can be used in various clinical contexts, such as:
- Removal of foreign bodies: If there is a particle or small object embedded in the cornea, scraping can help remove it.
- Treatment of corneal ulcers: Corneal ulcers are open sores that form on the surface of the eye. Scraping can help remove damaged tissue and stimulate healing.
- Removal of corneal deposits: In some cases, calcific or protein deposits may accumulate on the surface of the cornea, affecting vision. Scraping can help eliminate these deposits.
- Preparation for other procedures: In some cases, corneal scraping may be performed as a preliminary step to another ophthalmic procedure, such as cataract surgery or corneal transplantation.
What are the Risks and Complications of Corneal Scraping?
Corneal scraping is generally a safe and effective procedure. However, as with any surgical intervention, there are some potential risks and complications, such as:
- Infection: The risk of infection is low, but it can be serious.
- Damage to the cornea: In some cases, scraping may accidentally damage the cornea.
- Loss of vision: In very rare cases, scraping may lead to vision loss.
