What is Corneal Cross-Linking to Prevent Vision Regression? | Gangnam Station Eye Clinic

Hello, this is Gangnam Smile Eye Clinic 😊💙

Many people planning vision correction surgeries such as LASIK, LASEK, or SMILE LASIK often worry about ‘vision regression’.

Today, we will take some time to learn about ‘collagen cross-linking’ or ‘corneal strengthening’, a procedure that reduces the probability of vision regression after LASIK/LASEK and enhances the stability of the surgery by strengthening the corneal structure.

What is Corneal Strengthening?

As the name suggests, corneal strengthening is a procedure that hardens and strengthens the cornea. By increasing the mechanical strength of the cornea and providing structural stability, it prevents vision regression after LASIK, LASEK, and SMILE LASIK.

Simply put, it’s like a 🛠️reinforcement construction that adds invisible rebar to strengthen the structure🛠️, preventing the cornea from thinning and deforming easily.

Corneal strengthening is performed at the final stage of vision correction surgery. It involves injecting a solution containing riboflavin, a vitamin B2 component, and then irradiating it with ultraviolet (UVA) light to enhance the bonding strength of collagen fibers within the cornea, thereby making the corneal structure denser and stronger.

This procedure is not only performed at Gangnam Station Eye Clinic but has also become a standard treatment for various progressive corneal diseases, such as keratoconus, even in university hospitals. It is a verified, safe, and medically trusted treatment method.

Corneal strengthening is not a mandatory condition for surgery.

However, some patients may experience the cornea gradually thinning and becoming irregular over time after LASIK or LASEK, leading to a risk of a side effect called corneal ectasia. In such cases, it is essential to undergo the procedure.

This typically applies to individuals with high myopia, very thin corneas, irregular corneal shapes, or those who frequently rub their eyes.

In these situations, it is crucial to have a thorough consultation with an ophthalmologist at Gangnam Station Eye Clinic to prevent and manage the cornea in advance, thereby maintaining stable vision in the long term.

For those who do not fall into the above categories, corneal strengthening may not be a mandatory condition.

However, when undergoing corneal strengthening, there are various benefits such as:

✅ Enhanced structural stability of the cornea

✅ Reduced risk of vision regression (myopia recurrence)

✅ Inhibition of keratoconus progression

Since there are no particular disadvantages to undergoing the procedure, most patients prefer the corneal strengthening option during surgery.

As mentioned earlier, if the UV exposure and time are appropriately managed, there are no significant side effects associated with corneal strengthening.

However, after undergoing corneal strengthening, the riboflavin solution may occasionally remain in the cornea for about a week, so it is advisable to block UV light for about a week.

Wearing sunglasses outdoors is strongly recommended.

For vision correction surgeries like LASIK, LASEK, and SMILE LASIK, the longevity of vision is just as important as immediate improved vision.

This means that post-operative care is crucial, but prevention through precise examinations and treatments before and during the surgery is also very important.

Gangnam Smile Eye Clinic at Gangnam Station not only offers corneal strengthening as an option but also designs and performs surgeries tailored to each individual's corneal topography using wavefront technology to understand the corneal map.

If you are concerned about vision regression before surgery, or if you are curious about the precise corneal topography of your eyes, try Gangnam Smile Eye Clinic's meticulous and precise free eye examination.

If you have any other questions, please feel free to leave a comment or contact us at any time.

Thank you.