{"id":263,"date":"2020-04-14T17:00:31","date_gmt":"2020-04-14T17:00:31","guid":{"rendered":"https:\/\/ophthalmo-iasis.gr\/?page_id=263"},"modified":"2026-04-06T17:13:54","modified_gmt":"2026-04-06T17:13:54","slug":"prk","status":"publish","type":"page","link":"https:\/\/ophthalmo-iasis.gr\/en\/prk\/","title":{"rendered":"PRK"},"content":{"rendered":"
<\/span><\/div>

\u00a0Photorefractive Keratectomy (PRK)<\/b><\/h1>\n<\/div><\/div>

PRK is a type of refractive surgery. This type of surgery uses a laser to treat vision problems caused by refractive errors. You have a refractive error when your eye doesn't focus light properly.<\/span><\/p>\n

To see clearly, light rays must travel through your cornea and lens. The cornea and lens refract light so that it focuses on the retina. The retina converts light into signals that are sent to your brain and become images. When you have refractive errors (nearsightedness, farsightedness, astigmatism), the shape of your cornea or lens prevents light from focusing properly. When light is not focused on the retina as it should, your vision is blurred.<\/span><\/p>\n

With PRK, your eye doctor uses a laser to change the shape of your cornea. This improves the way light is focused on the retina. PRK is used to treat nearsightedness (myopia), farsightedness (hyperopia), and astigmatism.<\/span><\/p>\n

The goal of PRK is to correct your refractive error to improve your vision.\u00a0<\/span><\/p>\n

Who is a good candidate for PRK?<\/b><\/p>\n

If you have dry eyes or a thin cornea and want to undergo refractive surgery, PRK may be a good option for you. This is because some other types of refractive surgery, such as LASIK, may not be suitable in such cases.<\/span><\/p>\n

Also, if you have a very active lifestyle or work, PRK may be a better option for you than LASIK or similar procedures. This is because PRK does not involve creating a flap in the cornea like LASIK and similar surgeries. In the event of an injury, the corneal flap could become displaced, causing problems.<\/span><\/p>\n

To undergo PRK surgery, certain conditions must be met. Some of them are:<\/span><\/p>\n

You must be 18 years of age or older (ideally, over 21 years of age, when your vision is most likely to have stopped changing).<\/span><\/p>\n

Your eyeglass prescription shouldn't have changed much in the last year.<\/span><\/p>\n

You need to have realistic expectations about what PRK can and cannot do for you.<\/span><\/p>\n

Some people are not good candidates for PRK. They include people with:<\/span><\/p>\n