What is Refractive Surgery?
posted by Ophthalmology | February 2, 2017
Vision conditions affect millions of people around the world, and while some of these conditions can’t be cured, medical technology can improve many of them.
One solution is called refractive surgery, which can help fix vision problems through laser treatments. You may have heard of LASIK surgery, for instance – this is one of several major types of refractive eye surgery.
Here are the different types of refractive surgery, their risks and their benefits.
You may have heard of a few, but there are actually several popular refractive eye treatments available.
The most well-known surgery, LASIK is a laser procedure that helps correct nearsightedness, farsightedness and astigmatism (distorted or blurry vision). The procedure is called in-situ keratomileusis, and it works by reshaping the tissue below the cornea to help focus the eye.
Short for photorefractive keratectomy, this is a less complete form of LASIK surgery. It treats the same things as LASIK, but where LASIK reshapes the tissues below the eye, PRK only affects the surface of the cornea.
Epi-LASEK is like LASIK, but in this procedure, a doctor uses an alcohol solution to separate tissue from your cornea before reshaping it with a laser.
Also abbreviated LRI, this stands for astigmatic keratotomy. This is one of the procedures that doesn’t involve a laser in any way. Instead, a doctor makes small incisions in the eye then surgically reshapes it.
Similar to PRELEX, this is for people who are too nearsighted or farsighted for LASIK or other laser procedures to work. Unlike PRELEX, where the doctor makes an incision and places a new lens in your eye, your old lens is not actually removed.
Also like LASIK and PRK, laser epithelial keratomileusis uses a contact lens to help the healing process and an alcohol solution to separate tissue layers.
No alcohol solution, but uses the contact lens to help protect the healing process.
Stands for presbyopic lens exchange. This is when the lens in your eye loses flexibility, and must be replaced with a multifocal lens. It’s also known as RLE, or refractive lens exchange. You may have heard of it by its more common name: cataract surgery.
During cataract surgery, a doctor cuts into the edge of the cornea and removes the lens, replacing it with a new lens made of plastic or silicone. Cataract surgery helps severe cases of nearsightedness or farsightedness. It’s sometimes combined with LASIK or LASEK surgeries.
Another procedure that doesn’t involve lasers, intracorneal ring segments (ICR) flatten out the cornea and help focus the eye. It was used to treat nearsightedness, but with LASIK and other laser procedures now available, it’s used more often to treat a condition called keratoconus: where the cornea is poorly shaped and affects your vision.
In almost all cases, refractive surgeries have very high success rates in improving vision problems.
Several of the surgeries can come with side effects, though, and they can be moderate to severe in some cases. Some side effects include:
Refractive eye surgery is a big step, but many people find that the benefits far outweigh any potential side effects. If you’re struggling with vision problems and wondering whether refractive surgery might be right for you, speak to your ophthalmologist.
“What is Refractive Surgery?” American Academy of Ophthalmology. https://www.aao.org/eye-health/treatments/what-is-refractive-surgery
“A Guide to Refractive and Laser Eye Surgery.” WebMD. http://www.webmd.com/eye-health/overview-refractive-laser-eye-surgery#1
This information is not intended to replace the advice of a medical professional. You should always consult your doctor before making decisions about your health.