SiLK: The Latest Generation Non-Flap LASIK Technology

SiLK (Smooth Incision Lenticule Keratomileusis) is the latest-generation non-flap LASIK technology from Johnson & Johnson Vision, designed to deliver optimal visual acuity through a minimally invasive procedure, high precision, and a high level of safety.

Using advanced ultra-low energy laser technology, SiLK is an ideal option for those who wish to be free from glasses or contact lenses while maintaining high safety standards and enjoying a more comfortable recovery.

What is SiLK?

Before understanding SiLK, it is important to know the difference between conventional LASIK and SiLK.

Conventional LASIK is a vision correction procedure that involves creating a flap (a thin layer) on the cornea. This flap is lifted to allow the laser to reshape the corneal tissue, after which the flap is repositioned. ((For a complete explanation of conventional LASIK, please refer to the following page: LASIK Info).

SiLK is a non-flap LASIK procedure that creates a lenticule (a thin corneal tissue layer) using an ultra-low energy laser with sub-micron precision. The lenticule is then removed through a micro-incision, without creating a corneal flap.

The key advantage of this non-flap Lasik technology is that the corneal structure remains more stable, the risk of flap-related complications is minimized, and patient comfort and safety during and after the procedure are enhanced.

Advantages of SiLK

Flap-Free (Non-Flap LASIK)
- Eliminates the risk of flap-related complications such as flap striae or wrinkles that may impair vision quality, and epithelial ingrowth, where epithelial cells grow under the flap and may cause blurred vision, glare, or irritation.
- Greater corneal structural stability
Fast and Precise Procedure
- Lenticule formation takes only about 16 seconds
- More efficient and comfortable procedure
- Utilizes state-of-the-art laser technology to achieve excellent visual outcomes
More Comfortable Recovery
- Most patients experience clearer vision by the next day
- Some patients may require a slightly longer recovery period
Minimally Invasive
- Micro-incision of only 2–4 mm
- Helps accelerate healing and reduce post-LASIK dry eye symptoms
Clear and Stable Vision
- Uses low-energy laser with sub-micron precision
- Provides consistent and stable long-term visual quality over the long term

Why Choose SiLK?

Ultra-Low Laser Energy

SiLK uses the lowest laser energy compared to similar technologies, resulting in:

Reduced inflammation
Faster and more comfortable recovery
Better protection of surrounding corneal tissue

Super Fast and Smooth Procedure

Smoother and more precise corneal incision
Lower tissue pressure
Highly precise lenticule creation in approximately 16 seconds
Faster and smoother procedure — smooth as silk

Sub-Micron Precision

Easier lenticule extraction for surgeons
Lower risk of tissue damage
Supports faster recovery

Exclusive Biconvex Lenticule Profile

SiLK is currently the only non-flap LASIK technology with a biconvex lenticule profile, offering the following benefits:

Less corneal collagen fiber disruption, maintaining corneal strength
Less corneal nerve disturbance, supporting better nerve regeneration and long-term comfort
More complete wound closure, helping reduce the risk of glare

Difference Between Biconvex & Plano-Convex

Comparison Between SiLK and Conventional LASIK

Feature	SiLK	Conventional LASIK
Flap	No flap	Uses a flap
Incision length	Minimal (±2–4 mm)	Relatively large (±20 mm)
Dry eye risk	Lower	Higher
Visual recovery	Gradual and comfortable	Very fast (±24 hours)
Flap complications	None	Possible
Retreatment for over/under correction	Can be performed using other LASIK platforms without additional cost*	Can be performed without additional cost*

*Terms and conditions apply.

Who is a Suitable Candidate for SiLK?

SiLK may be an ideal option for individuals who:

Prefer a flap-free LASIK procedure, such as high-impact athletes or those undergoing military training
Prioritize long-term comfort and safety
Desire a lower risk of dry eye symptoms

Conclusion

SiLK represents a breakthrough in next-generation non-flap LASIK technology, offering high precision, minimally invasive procedures, comfortable recovery, and clear, stable visual outcomes.

With advanced laser technology from Johnson & Johnson Vision, SiLK sets a new standard in vision correction.