A Beginner’s Guide to Epi-LASIK: What is It and How Does it Work?

Did you know that there’s an equally safe and effective alternative to LASIK? It’s called Epi-LASIK, a laser vision correction procedure that’s less invasive because there are no corneal incisions involved. 

 

Just like LASIK, Epi-LASIK is used to treat various refractive errors, such as astigmatism, myopia, hyperopia, and presbyopia.

 

To help you determine if it’s the right refractive treatment for you, we’ve put together a quick guide to Epi-LASIK procedures. Read on below!

 

What is Epi-LASIK?

 

Epi-LASIK is a new form of surface-based refractive surgery that combines the desirable features of conventional LASIK (laser in-situ keratomileusis) and LASEK (laser epithelial keratomileusis).

 

It’s more similar to LASEK in the sense that it doesn’t make any corneal flap, but rather separates a thin layer of cells (called epithelium) on the front surface of the cornea using specialised equipment.

 

Meanwhile, it’s different from LASIK because the separated layer of cells is much thinner, therefore protecting the cornea’s health and structure.

 

Epi-LASIK also doesn’t involve any alcohol solution to loosen up the cells. That’s why many surgeons prefer it over other laser surgeries because the alcohol solution can be harmful to the epithelial cells and prolong the recovery period.

 

This procedure is often suggested as an alternative to patients with thin corneas who might not be good candidates for LASIK and LASIK.

 

What happens during Epi-LASIK?

 

By definition, Epi-LASIK surgery involves reshaping the cornea to enhance how light focuses on the retina, resulting in clearer vision. 

 

Here’s what you can expect before, during, and after Epi-LASIK:

 

Before Epi-LASIK

 

Before undergoing Epi-LASIK, you will have to undergo a diagnostic test to evaluate your qualifications for the procedure.

 

If you’re wearing contact lenses, you’ll be asked to abstain from them for a minimum of two weeks to give your cornea time to adjust to its original shape.

 

For soft contact lens users, stop wearing them for two weeks before the first evaluation. Meanwhile, if you wear hard lenses, stop wearing them for at least weeks before the start of the diagnostic test.

 

This is also when your surgeon will explain in detail what Epi-LASIK is, as well as the benefits and possible risks that come with it.

 

During Epi-LASIK

 

The surgeon uses an epithelial separator with an oscillating blunt to separate a thin layer of epithelium on the surface of the cornea to make space for the laser treatment underneath.

 

Once the cornea has been reshaped, the epithelial layer will be repositioned and a special bandaged lens will be applied to keep the layer of cells in place. The lens helps with the healing process, promoting comfort, and preventing complications. 

 

The entire procedure takes around 30 minutes or less, but expect to spend around two hours in the clinic for the pre-surgery preparation, after-care treatment, and paperwork.

 

After Epi-LASIK

 

It’s unlikely that vision will improve immediately after Epi-LASIK!

 

Patients might have to wait for two to three days to see an improvement, but generally, it takes at least three to six months to experience the intended visual outcome in full effect.

 

Within two to three days, most Epi-LASIK patients are able to return to their regular routine, including driving and physical activities.

 

Finally, it’s essential to follow your doctor’s medication regimen because the final quality of your vision is affected by how your corneas heal during the recovery period.

 

Pros and cons of Epi-LASIK

 

PROS	CONS
●      Ideal for patients with thin corneas ●      Quick and easy procedure to perform ●      Fast recovery period ●      Low risk of flap complications	●      Risk of bleeding, swelling, or infection ●      Possible side effects: light sensitivity, poor night vision, corneal haze, and vision glares

 

If you’d like to find out if undergoing Epi-LASIK is the appropriate route for you, get in touch with Shinagawa Eye Centre and its team of specialists for a personal consultation! Call to enquire or book an appointment today.