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Photorefractive Keratectomy

Medically reviewed by Drugs.com. Last updated on Mar 3, 2024.

What is photorefractive keratectomy?

Photorefractive keratectomy (PRK) is laser surgery to correct refractive errors of the eye. Refractive errors are common eye disorders that cause blurred vision. These errors happen when there is a problem in the refraction (bending) of light in the eye. They are often caused by an abnormal shape and texture of the cornea. The cornea is the clear outer layer of your eye. PRK uses a laser to reshape your cornea or make it smoother. This helps light to focus better in the eye, which leads to clearer vision.

Eye Anatomy

How do I prepare for PRK?

What will happen during PRK?

What will happen after PRK?

What are the risks of PRK?

You may get an infection. Nerves or blood vessels may be damaged during surgery. You may need another eye surgery. It may take longer than expected for your cornea to heal. You may have increased pain. Your vision may be worse than before surgery. You may develop glaucoma (increased pressure), cataracts (clouding of the lens), or long-term inflammation. You may lose your vision. You may have dry eyes. Scars may form on your corneas. You may have other eye problems, such as permanent glare, haze, or halos around lights at night.

Care Agreement

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Further information

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