CLEAR SEOUL Clinic
What is 4th
Generation
Clear LASIK?
4th Generation Vision Correction
Surgery using Swiss Ziemer Z8 Lase
It refers to refractive error correction by laser irradiation using the FEMTO LDV Z8 equipment to create a lenticule
(a piece of corneal tissue), which is then removed through a minimal incision.
Latest in 2022 Clear Lasik
Ziemer Z8 Laser
CLEAR
=
Corneal
Lenticule
Extraction for
Advanced
Refractive Correction
It can minimize damage to the superficial corneal layer with minimal incisions, reducing the probability of developing dry eye syndrome, and can enable vision correction regardless of the presence of astigmatism.
What is a Lenticule?
The Femtosecond Laser creates a small
disc-shaped piece of tissue
called a lenticule
in the cornea and then extracts this lenticule
through
a small incision on the corneal
surface.
By removing the lenticule, the
shape of the cornea changes,
correcting
refractive errors.
Clear LASIK minimizes the impact on the
superficial
layers of the cornea during
surgery, resulting in
less occurrence of dry
eye syndrome.
Why is it called the 4th Generation?
Evolution of Vision Correction Surgery:
Surgery involving
the removal of the
corneal epithelium.
1st Generation
LASEK
Surgery involving
the creation of
a corneal flap
2nd Generation
LASIK
Surgery involving
minimal incision
without creating
a corneal flap
3nd Generation
LASIK
Surgery that
involves minimal
incision without creating
a corneal flap and takes
into account the
rotational axis
of the eye
4th Generation
Clear LASIK
LASEK
Vision correction by
removing corneal epithelium
LASIK
Vision correction after
creating a corneal flap
Clear LASIK
Parenchyma separation through the
cornea with a 2mm minimal incision
Clear Seoul Eye Clinic's Clear
LASIK Surgery Process
STEP 1
Lenticule Creation
Create a small disc-shaped piece of
corneal tissue called a lenticule and make
a partial incision in the cornea
STEP 2
Lenticule Extraction
Remove the lenticule through the
incision with minimal cornea irritation
STEP 3
Correction of Vision
By removing the lenticule, modify the
corneal shape to correct refractive errors
Clear Seoul Eye Clinic’s Clear LASIK Features
Low Energy
Clear Seoul Eye Clinic's Clear LASIK minimizes corneal damage
with precise low-energy laser scanning, allowing for fast recovery.
To use the appropriate energy for the corneal condition,both the wavelength and pulse length need to be adjustable.
Unlike previous devices where only the pulse length was adjustable,
Clear LASIK can adjust both wavelength and pulse, enabling personalized low-energy treatment for each patient.
High Rate
Formation of gas bubbles in unseparated areas
Excessive tissue damage
Compared to the previous SMILE (500kHz), the laser pulse repetition rate
of the accelerated Clear LASIK (5,000kHz) remains denser and smoother
even when using lower energy, allowing for smoother incisions.
Cyclotorsion Correction
By correcting cyclotorsion, the lenticule's position can be
adjusted while the eye is fixed, minimizing symptoms like glare and discomfort.
Traditional SMILE
Unfixed lenticule creation position
▼
Lenticule created in the direction
of standing astigmatism
▼
Error after correction
Clear LASIK
Lenticule creation position
rotated through interface
▼
Lenticule created in the direction
of lying down astigmatism
▼
Customized astigmatism correction
Stable Eye Fixation
Minimized lens distortion, the interface allows centering, higher suction pressure for reduced suction loss risk,
lower accident probability, and adjustable incision position for closer proximity to lenticule center.
Real-time Corneal Measurement
During surgery, real-time detection of the pupil's edge, entire corneal structure,
lens, and iris allows optimal corneal parenchyma separation and precise measurement of the corneal center,
enabling accurate vision correction.