SMILE LASIK, ReLEx SMILE, and SMILE Pro: What’s the Difference and
What Is the Latest Technology?
Looking for Information About SMILE LASIK?
If you are searching for information about SMILE LASIK, ReLEx SMILE, or SMILE Pro, chances are you are considering a modern non-flap vision correction procedure to reduce your dependence on glasses or contact lenses.
In recent years, non-flap LASIK technologies such as SMILE have become increasingly popular because they offer smaller incisions, better corneal structural stability, and a relatively lower risk of dry eyes compared to conventional flap LASIK.
However, refractive technology continues to evolve. Today, the latest generation of non-flap technology, such as SiLK (Smooth Incision Lenticule Keratomileusis) has emerged, bringing various advancements to the concept of modern lenticule procedures.
Find complete information about the following non-flap LASIK technologies:
What Is SMILE LASIK?
SMILE LASIK (Small Incision Lenticule Extraction) is a modern non-flap vision correction procedure that uses a femtosecond laser to create a lenticule (a thin layer of corneal tissue) inside the cornea.
The lenticule is then removed through a small incision, reshaping the cornea to correct near-sightedness, astigmatism, and certain refractive errors.
Unlike conventional LASIK, which involves creating a corneal flap, SMILE is a non-flap LASIK procedure.
Because it does not require the creation of a corneal flap, this technology has become popular among patients seeking:
What Is the Difference Between Conventional LASIK and SMILE?
In conventional LASIK, the doctor creates a thin corneal flap using either a femtosecond laser or a microkeratome. The flap is then lifted to allow the laser to reshape the corneal tissue, after which the flap is repositioned back into place. Flap LASIK technology offers several advantages, including very rapid visual recovery.
However, because a corneal flap is involved, there is still a possibility of flap-related complications such as:
SMILE introduced a non-flap approach using a much smaller incision. As a result, many patients with active lifestyles are increasingly considering technologies such as SMILE.
What Is ReLEx SMILE?
ReLEx SMILE is the original technology and procedure name introduced by Carl Zeiss for the Small Incision Lenticule Extraction (SMILE) method. The term “ReLEx SMILE” became widely recognized because it was one of the first non-flap technologies to be broadly adopted in modern refractive surgery. In everyday practice, many people later began referring to the procedure simply as "SMILE LASIK" or "SMILE."
Because of its popularity, keywords such as:
have become highly searched by patients interested in modern vision correction procedures.
What Is SMILE Pro?
SMILE Pro is the latest evolution of SMILE technology, utilizing a newer-generation laser platform with a significantly faster lenticule creation process.
This technology has gained popularity because it offers:
Is There Technology Newer Than SMILE?
Vision correction technology continues to advance. While SMILE and SMILE Pro are known as modern non-flap LASIK technologies, the latest generation has now emerged from Johnson & Johnson Vision in the form of a lenticule-based technology called SiLK (Smooth Incision Lenticule Keratomileusis).
SiLK was developed by Johnson & Johnson Vision as the latest-generation non-flap LASIK technology designed to deliver:
What Is SiLK?
SiLK (Smooth Incision Lenticule Keratomileusis) is the latest-generation non-flap LASIK technology from Johnson & Johnson Vision, developed to further refine the concept of modern lenticule procedures.
SiLK utilizes
Its goal is to help provide
Why Are Many Doctors Beginning to Adopt SiLK Technology?
One of the key characteristics of SiLK is its use of ultra-low laser energy.
This approach is designed to help:
SiLK is recognized for using one of the lowest laser energy levels among similar lenticule- based technologies.
SiLK is currently the only non-flap LASIK technology featuring an exclusive biconvex lenticule profile.
This design is intended to help:
Like SMILE and SMILE Pro, SiLK is also a non-flap LASIK procedure.
However, in SiLK, the lenticule is created using advanced laser technology with high precision and an extremely fast treatment process.
Comparison Between SMILE, SMILE Pro, and SiLK
| Factors | SMILE | SMILE Pro | SiLK |
|---|---|---|---|
| Procedure Type |
Non-flap
|
Non-flap
|
Non-flap
|
| Technology | Modern lenticule technology | An evolution of SMILE with a faster process | Next-generation lenticule technology from Johnson & Johnson Vision |
| Laser Approach | Femtosecond lenticule | New-generation laser platform | Ultra-low energy laser |
| Precision | High | High | Sub-micron precision |
| Lenticule Profile | Conventional | Conventional | Biconvex lenticule profile (exclusive) |
| Technology Focus | Modern non-flap | Speed & efficiency | Smoothness & tissue preservation |
| Corneal Tissue Approach | Minimally invasive | Minimally invasive | Designed to help better preserve corneal tissue |
| Recovery | Comfortable | Comfortable | Designed to support a more comfortable recovery through ultra low energy usage and better preservation of corneal structure |
So, Which Is Better?
SMILE, SMILE Pro, and SiLK are all modern flap-free eye correction technologies. The best technology choice still depends on:
However, for patients looking for:
Why Does KMN EyeCare Offer SiLK Technology?
KMN EyeCare provides refractive technologies with an approach that prioritizes precision, corneal stability, long-term comfort and safety, evidence-based modern technology.
SiLK was selected because it offers:
This technology is especially suitable for individuals who:
FAQ About SMILE, SMILE Pro, and SiLK
Complete information about SMILE, SMILE Pro, and SiLK
SMILE uses a non-flap approach with smaller incisions, which is why many patients choose it for better corneal structural stability and a relatively lower risk of dry eyes.
However, flap LASIK still offers certain advantages, including very rapid visual recovery.
The most suitable technology should always be determined based on each individual’s eye condition.
SMILE Pro is the latest evolution of SMILE technology, featuring a newer-generation laser platform and a significantly faster lenticule creation process.
SiLK and SMILE are both non-flap lenticule-based LASIK technologies.
However, SiLK uses a different technological approach, featuring ultra-low laser energy and an exclusive biconvex lenticule profile, designed to help:
Yes. Both are non-flap LASIK procedures.
The risk of dry eyes with SMILE and SiLK is generally lower compared to flap LASIK because corneal nerve disruption is minimized.
Most patients begin to notice clearer vision shortly after the procedure, although recovery time may vary from person to person.
Introducing SiLK
Watch KMN EyeCare doctors explain the latest generation of non-flap technology, SiLK.
Consult Your Eyes at KMN EyeCare
Interested in finding out which LASIK technology is most suitable for your eyes? Schedule a comprehensive eye examination and consultation with the KMN EyeCare team to discover the most appropriate vision correction technology for your needs.
KMN EyeCare
A New Standard in Modern Vision Correction — From Proven LASIK Technology to the Latest Generation Non-Flap Technology (SiLK).
Disclaimer: Every medical procedure has specific indications and outcomes that may vary for each individual. A comprehensive eye examination by an ophthalmologist is required to determine candidacy for treatment.