Technology
วิวัฒนาการการรักษาสายตาผิดปกติด้วยเลเซอร์
Excimer laser
MEL 90 Advancing Excimer Laser Technology
The use of Excimer Lasers for refractive eye surgery began in 1986, and since then, Carl Zeiss has continued to advance and refine this technology. The MEL 90 Excimer Laser represents the latest generation, designed to deliver higher precision, more natural corneal curvature, and better night-vision quality after surgery. With an extremely small laser beam—only 0.7 mm—the MEL 90 enables highly accurate and fine ablation, improving visual clarity and reducing the likelihood of night glare. Key Features of the MEL 90
- Flexiquence:Allows surgeons to select between 250 Hz and 500 Hz laser frequencies based on the procedure required. The ultra-fast 500 Hz mode significantly shortens treatment time— only 13 seconds for correcting –1.00 diopter of myopia.
- Triple-A (Advanced Ablation Algorithm): An optimized ablation profile designed to maintain the natural aspheric shape of the cornea. This advanced algorithm helps reduce night glare and visual disturbances often associated with traditional LASIK or PRK procedures.
- Eye Tracker SystemA high-speed tracking system that monitors eye movement in real time to ensure precise laser placement. The system automatically pauses the laser if significant eye movement occurs, enhancing safety and accuracy.
FEMTOSECOND LASER VISUMAX
VisuMax is a state-of-the-art Femtosecond Laser system that operates with ultra-low energy <0.2 microjoules and a 500 Hz firing frequency.
Its gentle corneal contact provides a pain-free experience, while its computer-controlled precision ensures safe and accurate corneal layer separation.
Four Major Functions of the VisuMax System
- Corneal flap creation for Femto-LASIK
- Corneal transplantation procedures
- Insertion of Intracorneal Rings (ICR) to strengthen the cornea
- ReLEx SMILE – minimally invasive correction of myopia and astigmatism
Frequently Asked Questions : FAQ
Both VISUMAX and MEL 90 are manufactured by Carl Zeiss in Germany, a global leader in medical optics and precision technology.
VISUMAX is the only Femtosecond Laser capable of performing ReLEx SMILE. It is used by leading LASIK centers across Thailand, including: Chulalongkorn Hospital LASIK Center TRSC Vision Correction Center And many other major refractive surgery centers The MEL 90 Excimer Laser is also widely used because of its continuous innovation and proven reliability.
Yes. Femtosecond Laser technology continues to evolve. However, the ReLEx SMILE technique—which uses Femtosecond Laser to perform small-incision refractive surgery—remains among the most advanced and modern techniques available today.