LASIK vs. Epi-LASIK
The FDA first approved the use of an excimer laser for correcting refractive errors such as nearsightedness, farsightedness, and astigmatism in 1995. Since then, eye surgeons have successfully employed PRK, LASEK, Epi-LASIK and LASIK surgery to correct vision problems. While the PRK, LASEK, and LASIK procedures have been performed since the 1990s, Epi-LASIK was developed in the early 2000s to address some of the problems associated with other laser vision correction treatments.
If you suffer from vision impairment and are considering refractive surgery, laser vision correction may be for you. To learn more about what differentiates Epi-LASIK from traditional LASIK surgery, we invite you to read below or to contact a local refractive surgeon through our nationwide DocShop network.
Epi-LASIK
The biggest difference between LASIK and Epi-LASIK involves the actual surgical procedure – Epi-LASIK does not require the creation of a corneal flap. This difference in technique is appealing for many patients, as some are hesitant to undergo traditional laser vision correction due to the use of a microkeratome surgical blade. Though safe and effective, the microkeratome serves as a psychological hurdle for many individuals; the Epi-LASIK procedure provides an alternative treatment option in such cases.
During Epi-LASIK surgery, patients are typically given anti-anxiety medication about an hour before treatment to calm their nerves. When the surgeon is ready to perform surgery, numbing drops are applied to both eyes. Once the drops have taken effect, the surgeon separates the epithelium (the outermost layer of the cornea) from the underlying corneal tissue. An instrument known as an epikeratome serves as an epithelial separator, and is used to isolate a thin corneal sheet called the epithelium to expose the cornea. The surgeon then uses an excimer laser to reshape the cornea and improve vision. After a precise amount of corneal tissue has been removed, the surgeon replaces the epithelial sheet and places special bandage contact lenses in each eye to promote healing. The special contact lenses can usually be removed within three days. Most patients experience improved vision in a few days; however, the best results may not be apparent until up to six months after undergoing the Epi-LASIK procedure.
LASIK
Epi-LASIK and LASIK surgery are similar. The main difference between the procedures is how the underlying layers of corneal tissue are accessed. During Epi-LASIK surgery, only the epithelial layer is separated and lifted; during LASIK surgery, a thicker corneal flap is made using a metal microkeratome blade, or in instances in which IntraLASIK is utilized, a laser. While LASIK offers great visual results and a short recovery time (patients usually experience clear vision the day after undergoing surgery), it is associated with a higher rate of flap complications. That is why patients who have thin corneas are usually better candidates for Epi-LASIK surgery.
Contact an Epi-LASIK or LASIK Surgeon
If you are interested in undergoing EPI-LASIK or LASIK, find a laser vision correction surgeon in your area. It is important that you make a decision regarding treatment only after you have all of the facts regarding your options. A refractive surgeon can explain the risks and benefits of treatment to you in detail and determine your candidacy for laser vision correction.
Keyword Tags:
