Keratectomy
Keratectomy
Keratectomy (pronounced: ker-uh-tek-tuh-mee) is a surgical procedure involving the removal of part of the cornea. The term is derived from the Greek words "kerato," meaning cornea, and "ectomy," meaning removal.
History
The first keratectomy was performed in the late 19th century. Since then, it has evolved into several different types, including Photorefractive Keratectomy (PRK) and Phototherapeutic Keratectomy (PTK).
Procedure
During a keratectomy, a surgeon uses a specialized tool to remove a layer of the cornea. This can help to reshape the cornea and improve vision. The procedure is often performed to correct refractive errors such as myopia (nearsightedness), hyperopia (farsightedness), and astigmatism.
Risks and Complications
Like all surgical procedures, keratectomy carries some risks. These can include infection, scarring, and changes in vision. It's important for patients to discuss these risks with their ophthalmologist before undergoing the procedure.
Related Terms
- Cornea: The clear, dome-shaped surface that covers the front of the eye.
- Photorefractive Keratectomy (PRK): A type of keratectomy that uses a laser to reshape the cornea.
- Phototherapeutic Keratectomy (PTK): A type of keratectomy that uses a laser to treat corneal diseases.
- Myopia: Also known as nearsightedness, a condition in which close objects appear clearly, but far ones don't.
- Hyperopia: Also known as farsightedness, a condition in which distant objects can be seen clearly, but close ones are blurry.
- Astigmatism: A condition in which the cornea or lens is not perfectly round, causing blurred or distorted vision.
- Ophthalmologist: A medical doctor who specializes in eye and vision care.
External links
- Medical encyclopedia article on Keratectomy
- Wikipedia's article - Keratectomy
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